Trojan.Generic.17630393 (BitDefender), Trojan.PWS.Stealer.1932 (DrWeb), Trojan.Generic.17630393 (B) (Emsisoft), Artemis!FC39851A2B4D (McAfee), Trojan.Gen (Symantec), Trojan.Crypt (Ikarus), Trojan.Generic.17630393 (FSecure), Win32:Malware-gen (Avast), TROJ_GEN.R00XC0OGS16 (TrendMicro), Trojan.Generic.17630393 (AdAware), Trojan.Win32.IEDummy.FD (Lavasoft MAS)Behaviour: Trojan, Malware
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: fc39851a2b4d82038705e45d73442341
SHA1: c42204e486279975465433a879617e56bd0ad0d1
SHA256: caa99c17e0b7c474a58ae89bf1f9708877ee26667bab44a91e40489548390e27
SSDeep: 49152:vsqAGEYG8yijUMjDHXjgG8 OT5PpSyDOsyTTzXV/6U0eNzZLPjdSyW64NB1a5P:7AAGh8UMjDsG8rlP1Dkzl/6U00jjHL4u
Size: 3044888 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: PECompactV2X, UPolyXv05_v6
Company:
Created at: 2016-07-05 16:54:22
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:468
The Trojan injects its code into the following process(es):
Wormix v55.exe:1572
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:468 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1 bytes)
%System%\drivers\etc\hosts (269 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Wormix v55.exe (18248 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (20873 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nyhnwhc (196 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (0 bytes)
%System%\drivers\etc\hosts (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nyhnwhc (0 bytes)
Registry activity
The process %original file name%.exe:468 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "77 67 4C CA 55 70 8C 38 7E 8C BD 1A 32 A7 26 BB"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKCU\Software\Microsoft\Internet Explorer\Main]
"Start Page" = ""
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"Wormix v55.exe" = "Wormix v55"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Start Menu" = "%Documents and Settings%\All Users\Start Menu"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Personal" = "%Documents and Settings%\%current user%\My Documents"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Trojan 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 Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
"ProxyBypass" = "1"
The process Wormix v55.exe:1572 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "90 CA A2 18 2C D9 50 CA C6 FD F4 4D 38 A5 E9 8A"
Dropped PE files
MD5 | File path |
---|---|
d67360492fdf369f7956793ae232d147 | c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\Wormix v55.exe |
HOSTS file anomalies
The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 151 bytes in size. The following strings are added to the hosts file listed below:
173.194.71.100 | hack-games-vk.ru |
173.194.71.100 | forum-hack-games-vk.ru |
173.194.71.100 | www.forum-hack-games-vk.ru |
Rootkit activity
No anomalies have been detected.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:468
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1 bytes)
%System%\drivers\etc\hosts (269 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Wormix v55.exe (18248 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (20873 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nyhnwhc (196 bytes) - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
- Reboot the computer.
Static Analysis
VersionInfo
Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version:
File Description:
Comments:
Language: Chinese (Simplified, PRC)
Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: File Description: Comments: Language: Chinese (Simplified, PRC)
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 3538944 | 3019776 | 5.54513 | dcf3769e71d1b86f17039bb86cddb91a |
.rsrc | 3543040 | 24576 | 24064 | 3.91126 | 9cf0c2a610b4c2083df165f4480fb41f |
.reloc | 3567616 | 512 | 24 | 1.82008 | 41944e795bec5d5d73effabc669d6554 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
iexplore.exe_1068:
%?9-*09,*19}*09
%?9-*09,*19}*09
.text
.text
`.data
`.data
.rsrc
.rsrc
msvcrt.dll
msvcrt.dll
KERNEL32.dll
KERNEL32.dll
NTDLL.DLL
NTDLL.DLL
USER32.dll
USER32.dll
SHLWAPI.dll
SHLWAPI.dll
SHDOCVW.dll
SHDOCVW.dll
Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess
Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess
IE-X-X
IE-X-X
rsabase.dll
rsabase.dll
System\CurrentControlSet\Control\Windows
System\CurrentControlSet\Control\Windows
dw15 -x -s %u
dw15 -x -s %u
watson.microsoft.com
watson.microsoft.com
IEWatsonURL
IEWatsonURL
%s -h %u
%s -h %u
iedw.exe
iedw.exe
Iexplore.XPExceptionFilter
Iexplore.XPExceptionFilter
jscript.DLL
jscript.DLL
mshtml.dll
mshtml.dll
mlang.dll
mlang.dll
urlmon.dll
urlmon.dll
wininet.dll
wininet.dll
shdocvw.DLL
shdocvw.DLL
browseui.DLL
browseui.DLL
comctl32.DLL
comctl32.DLL
IEXPLORE.EXE
IEXPLORE.EXE
iexplore.pdb
iexplore.pdb
ADVAPI32.dll
ADVAPI32.dll
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
IExplorer.EXE
IExplorer.EXE
IIIIIB(II<.fg>
IIIIIB(II<.fg>
7?_____ZZSSH%
7?_____ZZSSH%
)z.UUUUUUUU
)z.UUUUUUUU
,....Qym
,....Qym
````2```
````2```
{.QLQIIIKGKGKGKGKGKG
{.QLQIIIKGKGKGKGKGKG
;33;33;0
;33;33;0
8888880
8888880
8887080
8887080
browseui.dll
browseui.dll
shdocvw.dll
shdocvw.dll
6.00.2900.5512 (xpsp.080413-2105)
6.00.2900.5512 (xpsp.080413-2105)
Windows
Windows
Operating System
Operating System
6.00.2900.5512
6.00.2900.5512
Wormix v55.exe_1572:
.text
.text
`.itext
`.itext
`.data
`.data
.idata
.idata
.didata
.didata
.edata
.edata
@.tls
@.tls
.rdata
.rdata
.rsrc
.rsrc
Wormix.exe
Wormix.exe
R=*.lN
R=*.lN
RegDeleteKeyW
RegDeleteKeyW
syg%d
syg%d
2shell32.dll
2shell32.dll
z.XT."
z.XT."
)#%f)
)#%f)
Zenix Yang [zenix.ccg@gmail.com]Zenix Yang [zenix.ccg@gmail.com]
Zenix Yang [zenix.ccg@gmail.com]Zenix Yang [zenix.ccg@gmail.com]
SShRf
SShRf
gdi32.dll
gdi32.dll
kernel32.dll
kernel32.dll
advapi32.dll
advapi32.dll
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9L.pSS
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.ihkw
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Vn.Jy
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i.VcaT
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.nFT08
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y.zP"
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b.Py(
q%s.tx
q%s.tx
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.Bil]
.Bil]
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0.pT>
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[.6]*,"`
[.6]*,"`
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.PU%~
usql
usql
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.NpjQ
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~%uh:c4j
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gb=%d
^.xV_U
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.fm5,C
r.JNTp
r.JNTp
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4JO2%xy
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_S8:\0$.bW
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oR.ER
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.Tk;:
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|D`UDpk
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Sgk%f
\V\B%uX.
\V\B%uX.
comctl32.dll
comctl32.dll
j'%d,
j'%d,
winspool.drv
winspool.drv
oleaut32.dll
oleaut32.dll
}KWEb
}KWEb
ZeNiX [forum.exetools.com]
ZeNiX [forum.exetools.com]
TZeNiX [forum.exetools.com]
TZeNiX [forum.exetools.com]
version.dll
version.dll
Buser32.dll
Buser32.dll
netapi32.dll
netapi32.dll
user32.dll
user32.dll
ýu@
ýu@
w*$6ole32.dll
w*$6ole32.dll
Lmsvcrt.dll
Lmsvcrt.dll
1.0.0.0
1.0.0.0
Wormix v55.exe_1572_rwx_00B67000_00001000:
ýu@
ýu@