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TrojanBanker.Win32.Brasil_6cf06dae54


Trojan.Generic.8702975 (BitDefender), Trojan-Dropper.MSIL.Agent.aipp (Kaspersky), BackDoor.Tordev.8 (DrWeb), Trojan.Generic.8702975 (B) (Emsisoft), Win32.SuspectCrc (Ikarus), Agent3.BXLA (AVG), AutoIt:MalOb-EQ [Trj] (Avast), Trojan-Banker.Win32.Brasil.FD, Trojan.Win32.Delphi.FD, Trojan.Win32.Sasfis.FD, VirTool.Win32.DelfInject.FD, mzpefinder_pcap_file.YR, GenericAutorunWorm.YR (Lavasoft MAS)Behaviour: Trojan-Dropper, Banker, Trojan, Worm, VirTool, WormAutorun

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: 6cf06dae542efc5b1ddd8f6cb5841db8

SHA1: f4fcc400d88cdc57029d115355b36e010f38e8df

SHA256: 58c2727a4dac7ff8a215c988769de6f13831d1b648128f0fc7c247648e8cb82b

SSDeep: 24576:9thEVaPqLWn8/vj5Vb4PBZWtm66rm0/ h8u:lEVUcWn8XFV54669GO

Size: 1096192 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6

Company: AtSync.com

Created at: 2012-08-06 18:43:22

Analyzed on: WindowsXP SP3 32-bit

Summary: Trojan-Dropper. Trojan program, intended for stealth installation of other malware into user's system.

Dynamic Analysis

Payload

Behaviour Description
WormAutorunA worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan-Banker's file once a user opens a drive's folder in Windows Explorer.


Process activity

The Trojan-Banker creates the following process(es):

windowshos.exe:876
windowshos.exe:1756
000881EA.exe:1744
DW20.EXE:972

The Trojan-Banker injects its code into the following process(es):

Hotdog XL.exe:1944
service.exe:1344
%original file name%.exe:1772
Pin.exe:1796

File activity

The process windowshos.exe:876 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Start Menu\Programs\Startup\lsass.exe (1773 bytes)

The process windowshos.exe:1756 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ogrej.orh (601 bytes)

The Trojan-Banker deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (0 bytes)

The process 000881EA.exe:1744 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\service.exe (196 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut4.tmp (1441 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ogrej.orh (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut3.tmp (2 bytes)

The Trojan-Banker deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut4.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut3.tmp (0 bytes)

The process service.exe:1344 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Pin.exe (27 bytes)
%Documents and Settings%\%current user%\Application Data\pid.txt (4 bytes)
%Documents and Settings%\%current user%\Application Data\WindowsUpdate.exe (4 bytes)
%Documents and Settings%\%current user%\Application Data\pidloc.txt (41 bytes)

The process %original file name%.exe:1772 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\windowshos.exe (1773 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Hotdog XL.exe (1862 bytes)

The process DW20.EXE:972 makes changes in the file system.


The Trojan-Banker creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\dw.log (76 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\9B2D9.dmp (597329 bytes)

Registry activity

The process windowshos.exe:876 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"

The process windowshos.exe:1756 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B9 D3 18 27 79 94 4B 07 3E 91 82 9B B1 02 6D 5A"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

To automatically run itself each time Windows is booted, the Trojan-Banker adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"windowshos.exe" = "%Documents and Settings%\%current user%\Local Settings\Temp\windowshos.exe"

The process Hotdog XL.exe:1944 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8F 55 BD 35 AA 6F 0D 19 CC 70 F3 65 9F A4 82 AB"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process 000881EA.exe:1744 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E4 68 71 CB 04 0D 76 95 06 AE F5 1A 21 26 2D A5"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

To automatically run itself each time Windows is booted, the Trojan-Banker adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"000881EA.exe" = "%Documents and Settings%\%current user%\Application Data\000881EA.exe"

The process service.exe:1344 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AB 42 E3 88 18 84 D6 78 5B EF 68 37 2E 81 5F 99"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"Hidden" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Application Data]
"Pin.exe" = "Microsoft Security Essentials"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

"Personal" = "%Documents and Settings%\%current user%\My Documents"

The Trojan-Banker modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan-Banker modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

To automatically run itself each time Windows is booted, the Trojan-Banker adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Windows Update" = "%Documents and Settings%\%current user%\Application Data\WindowsUpdate.exe"

The Trojan-Banker modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The process %original file name%.exe:1772 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E7 50 B2 86 4C 21 36 CA A9 D0 C3 1D 98 8F 24 E2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"windowshos.exe" = "windowshos"
"Hotdog XL.exe" = "XL by Nurun Irsandi"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

The Trojan-Banker modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan-Banker modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

The Trojan-Banker modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The process Pin.exe:1796 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6B 92 54 4B 52 B6 4D DC C5 C2 62 D2 41 0C BB BE"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

The process DW20.EXE:972 makes changes in the system registry.


The Trojan-Banker creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "75 B1 35 BE 42 12 EA C3 92 DA BE B7 59 F7 3D 5F"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1C 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan-Banker deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Network activity (URLs)

URL IP
hxxp://espressomachinesreviewsshop.com/solarbot/49.128.177.79
hxxp://espressomachinesreviewsshop.com/vv/FlashPlayerhost.exe (ET POLICY PE EXE or DLL Windows file download , Malicious)
hxxp://espressomachinesreviewsshop.com/solarbot/ComputerInfo.bin (ET POLICY PE EXE or DLL Windows file download , Malicious)
hxxp://espressomachinesreviewsshop.com/solarbot/WalletSteal.bin (ET POLICY PE EXE or DLL Windows file download , Malicious)
hxxp://pastebin.com/raw.php?i=1qEs747L190.93.250.20
hxxp://pastebin.com/1qEs747L
mail.espressomachinesreviewsshop.com49.128.177.79


HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan-Banker's file once a user opens a drive's folder in Windows Explorer.

Removals

Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.

Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):

    windowshos.exe:876
    windowshos.exe:1756
    000881EA.exe:1744
    DW20.EXE:972

  2. Delete the original Trojan-Banker file.
  3. Delete or disinfect the following files created/modified by the Trojan-Banker:

    %Documents and Settings%\%current user%\Start Menu\Programs\Startup\lsass.exe (1773 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\ogrej.orh (601 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\service.exe (196 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\aut4.tmp (1441 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\aut3.tmp (2 bytes)
    %Documents and Settings%\%current user%\Application Data\Pin.exe (27 bytes)
    %Documents and Settings%\%current user%\Application Data\pid.txt (4 bytes)
    %Documents and Settings%\%current user%\Application Data\WindowsUpdate.exe (4 bytes)
    %Documents and Settings%\%current user%\Application Data\pidloc.txt (41 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\windowshos.exe (1773 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Hotdog XL.exe (1862 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\dw.log (76 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\9B2D9.dmp (597329 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "windowshos.exe" = "%Documents and Settings%\%current user%\Local Settings\Temp\windowshos.exe"

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "000881EA.exe" = "%Documents and Settings%\%current user%\Application Data\000881EA.exe"

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "Windows Update" = "%Documents and Settings%\%current user%\Application Data\WindowsUpdate.exe"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  7. Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

Network Activity

Map

Strings from Dumps