Trojan.GenericKD.2070583_99640fa530 – Adaware

Trojan.Win32.Yakes.ijms (Kaspersky), Trojan.GenericKD.2070583 (AdAware), Trojan-Downloader.Win32.Moure.FD (Lavasoft MAS)Behaviour: Trojan-Downloader, Trojan

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

Summary

MD5: 99640fa5300545e76b65fcf61dad3427

SHA1: c27c724c091a95748b584287e3ed54dd4f41acc3

SHA256: ffc2679de899ba4756e1637176c427b3d2c2dd59570a0a3d243047b947296d26

SSDeep: 6144:JZXBsWqsE/Ao mv8Qv0LVmwq4FU0nN876VCIORI9qhUfaJmTVj1D9z:XXmwRo mv8QD4 0N46VCFRAm1mLxz

Size: 290276 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: BorlandDelphi30, BorlandDelphiv30, UPolyXv05_v6

Company: no certificate found

Created at: 1992-06-20 01:22:17

Analyzed on: WindowsXPESX 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):

crypt.exe:1744
%original file name%.exe:1384
WScript.exe:1896
WScript.exe:1160

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

crypt.exe:464

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process %original file name%.exe:1384 makes changes in the file system.

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

%Program Files%\Gorn\Gorn\prostoigra.bat (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\temp_0.tmp (190 bytes)
%Program Files%\Gorn\Gorn\2.txt (27 bytes)
%Program Files%\Gorn\Gorn\Uninstall.exe (4866 bytes)
%Program Files%\Gorn\Gorn\crypt.exe (3475 bytes)
%Program Files%\Gorn\Gorn\neznoesvidanie.vbs (271 bytes)
%Program Files%\Gorn\Gorn\dns_bablo.vbs (872 bytes)
%Program Files%\Gorn\Gorn\Uninstall.ini (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\2.tmp (68 bytes)
%Program Files%\Gorn\Gorn\1.txt (16 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\$inst (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\2.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\temp_0.tmp (0 bytes)

The process WScript.exe:1160 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)

Registry activity

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

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "24 50 B4 E4 A2 7E 86 C2 BA 1F 26 F2 CF A5 B0 D0"

[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 crypt.exe:464 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AB F3 E0 6B E2 EB BA 9D 27 04 0D 23 19 41 FA 99"

[HKCU\Software\NVIDIA Corporation\Global\nvUpdate]
"Value" = "20141110"
"Guid" = "ef903735-3f92-43a2-a43d-e193d88cf40d"

The process %original file name%.exe:1384 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"EstimatedSize" = "204"
"Publisher" = "Gorn"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"DisplayIcon" = "%Program Files%\Gorn\Gorn\Uninstall.exe"

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"NoModify" = "1"
"UninstallString" = "%Program Files%\Gorn\Gorn\Uninstall.exe"

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

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"DisplayName" = "Gorn 1.3"
"InstallDate" = "20150121"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"NoRepair" = "1"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Program Files%\Gorn\Gorn]
"crypt.exe" = "Tints"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%System%]
"wscript.exe" = "Microsoft (R) Windows Based Script Host"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Program Files%\Gorn\Gorn]
"prostoigra.bat" = "prostoigra"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1C 49 F1 3C D2 6A F0 6B CE 0C 08 DD 91 C4 BD EE"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"VersionMajor" = "1"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"InstallSource" = "c:\"

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Gorn 1.3]
"Language" = "1033"
"VersionMinor" = "3"
"InstallLocation" = "%Program Files%\Gorn\Gorn\"
"DisplayVersion" = "1.3"

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:

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Gorn" = "%Program Files%\Gorn\Gorn\crypt.exe"

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 process WScript.exe:1896 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "46 9A C3 C8 71 1D 41 EA 22 BC 42 E8 EC BF 89 37"

The process WScript.exe:1160 makes changes in the system registry.

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

[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\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\path2]
"CacheLimit" = "65452"

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

"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[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\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CC 18 20 D8 8D C3 0D 09 09 C6 45 CD 76 77 C5 0A"

[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"

[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\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"

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:

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

Proxy settings are disabled:

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

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 deletes the following value(s) in system registry:

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

Dropped PE files

MD5	File path
e3e0d8d110b52b93ffab9842516ed8ec	c:\Program Files\Gorn\Gorn\Uninstall.exe
207eea2c041e18fea34c7150caf2693f	c:\Program Files\Gorn\Gorn\crypt.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 1152 bytes in size. The following strings are added to the hosts file listed below:

23.94.146.54	my.mail.ru
23.94.146.54	m.my.mail.ru
23.94.146.54	vk.com
23.94.146.54	ok.ru
23.94.146.54	m.vk.com
23.94.146.54	odnoklassniki.ru
23.94.146.54	vk.com
23.94.146.54	www.odnoklassniki.ru
23.94.146.54	m.odnoklassniki.ru
23.94.146.54	ok.ru
23.94.146.54	m.ok.ru
23.94.146.54	www.odnoklassniki.ru
23.94.146.54	sotialmonstercookie.ru
217.20.152.226	st.mycdn.me
217.20.156.72	mycdn.me

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):
crypt.exe:1744
%original file name%.exe:1384
WScript.exe:1896
WScript.exe:1160
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Program Files%\Gorn\Gorn\prostoigra.bat (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\temp_0.tmp (190 bytes)
%Program Files%\Gorn\Gorn\2.txt (27 bytes)
%Program Files%\Gorn\Gorn\Uninstall.exe (4866 bytes)
%Program Files%\Gorn\Gorn\crypt.exe (3475 bytes)
%Program Files%\Gorn\Gorn\neznoesvidanie.vbs (271 bytes)
%Program Files%\Gorn\Gorn\dns_bablo.vbs (872 bytes)
%Program Files%\Gorn\Gorn\Uninstall.ini (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\$inst\2.tmp (68 bytes)
%Program Files%\Gorn\Gorn\1.txt (16 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Gorn" = "%Program Files%\Gorn\Gorn\crypt.exe"
Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name: Gorn
Product Name:
Product Version:
Legal Copyright: Gorn
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.3
File Description: Gorn 1.3 Installation
Comments:
Language: English (United States)

Company Name: Gorn Product Name: Product Version: Legal Copyright: Gorn Legal Trademarks: Original Filename: Internal Name: File Version: 1.3File Description: Gorn 1.3 Installation Comments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
CODE	4096	148684	148992	4.57087	bac8bae7a5e5326cf49943b90d1c062a
DATA	155648	10388	10752	2.62963	abafcbfbd7f8ac0226ca496a92a0cf06
BSS	167936	4341	0	0	d41d8cd98f00b204e9800998ecf8427e
.idata	176128	6040	6144	3.38637	7a4934595db0efc364c3982c4e335d8c
.tls	184320	8	0	0	d41d8cd98f00b204e9800998ecf8427e
.rdata	188416	24	512	0.14174	c4fdd0c5c9efb616fcc85d66056ca490
.reloc	192512	6276	6656	4.56552	867a1120317d51734587a74f6ee70016
.rsrc	200704	17716	17920	3.95103	7c74b59bff20f04d3504c4d3854e9b1b

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 10
03b42612688b3f9459683b1bdd0acd89
59f582f150a0faa44176ccc7638cf37a
ea5c1f6c29280f6f2c5b34cff2b06380
62c899631bfeeaff81ffb879196c689c
e685cf50ca1c1e253a8be29dc06d9bb9
3519312b0a92dcb093ac525d44038bdc
6fdfd598f057f274e8f3eac678dd9856
20f8d1818a2c9014d3d280334b8658a3
c44636ed90ee8d14618eabb4182488b8
e3e08e9db110948605a5a4a94253ff33

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

wuauclt.exe_968:

.text

`.data

.rsrc

@.reloc

wuauclt.pdb

GetProcessHeap

KERNEL32.dll

_wcmdln

_amsg_exit

msvcrt.dll

ntdll.dll

ole32.dll

RegCloseKey

RegOpenKeyExW

RegCreateKeyExW

ADVAPI32.dll

USER32.dll

OLEAUT32.dll

SHLWAPI.dll

zcÃ

version="6.0.0.0"

name="Microsoft.Windows.windowsupdate.wuauclt"

true

name="Microsoft.Windows.Common-Controls"

publicKeyToken="6595b64144ccf1df"

wuaueng.dll

Error: 0xx. wuauclt handler: failed to spawn COM server

Error: 0xx. wuauclt handler: failed to load wuaueng

/ReportNow

/ShowWindowsUpdate

/CloseWindowsUpdate

wuauclt.exe failed to get proc address for UI export object with error %#lx

Failed to load %s with error %X

wucltui.dll

wucltux.dll

call RunAUClientUI on wucltui.dll/wucltux.dll

Ntdll.dll

WuSqm %ls session datapoint (id:%d) is incremented with dword %d.

wuauclt.exe is exiting with code 0xX

wuauclt.exe launched with command line %s

kernel32.dll

WUWeb

Report

7.6.7600.256

Global\WindowsUpdateTracingMutex

WindowsUpdate.log

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Trace

Windows

shell32.dll

%s: %s [

%s: %s

%s\%s

= Module: %s

= Module:

= Process: %s

= Process:

=========== Logging initialized (build: %s, tz: %s) ===========

wups2.dll

wups.dll

Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Setup\ServiceStartup\

%hs %ls page "%ls", hr=%X

Microsoft.WindowsUpdate

wupdmgr.exe

Failed to cocreate IShellWindows, error = 0xlX

Failed to obtain window doc for window %d, error = 0xlX

Failed to obtain folder view for window %d, error = 0xlX

Failed to obtain folder IPersist for window %d, error = 0xlX

Window %d is NOT a WU window

Done enumerating windows

Quit for window %d failed: 0xlX

Window %d is a WU window. Attempting to close

Failed to obtain class ID for window %d, error = 0xlX

Got NULL disp interface for window %d

Got %d instead of VT_DISPATCH for window %d

Failed to obtain IWebBrowserApp for window %d, error = 0xlX

Failed to enumerate window %d, error = 0xlX

Found %d explorer windows

Closing WU explorer windows

Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\VolatileData

WUAppNotificationWindows

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired\Mandatory

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting

SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Services\Pending\

%chdhd

hd-hd-hd%chd:hd:hd:hd

%WinDir%

Windows Update

7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1459)

wuauclt.exe

Windows

Operating System

crypt.exe_464:

.text

P`.data

.rdata

0@.eh_fram

0@.bss

.idata

bpass

qef903735-3f92-43a2-a43d-e193d88cf40d

libgcj-13.dll

@%s:%s:%d

-_.!~*'()

GET /stat?uptime=%d&downlink=%d&uplink=%d&id=%s&statpass=%s&version=%d&features=%d&guid=%s&comment=%s&p=%d&s=%s HTTP/1.0

badpass

%s:%s

20141110

server-%s.googletestadminwin.com:30

8kernel32.dll

advapi32.dll

rpcrt4.dll

shlwapi.dll

RegCreateKeyA

RegCloseKey

RegOpenKeyA

ws2_32.dll

VirtualQuery failed for %d bytes at address %p

Unknown pseudo relocation protocol version %d.

Unknown pseudo relocation bit size %d.

GCC: (tdm-2) 4.8.1

KERNEL32.dll

msvcrt.dll

crypt.exe_464_rwx_00400000_00010000:

.text

P`.data

.rdata

0@.eh_fram

0@.bss

.idata

bpass

qef903735-3f92-43a2-a43d-e193d88cf40d

libgcj-13.dll

@%s:%s:%d

-_.!~*'()

GET /stat?uptime=%d&downlink=%d&uplink=%d&id=%s&statpass=%s&version=%d&features=%d&guid=%s&comment=%s&p=%d&s=%s HTTP/1.0

badpass

%s:%s

20141110

server-%s.googletestadminwin.com:30

8kernel32.dll

advapi32.dll

rpcrt4.dll

shlwapi.dll

RegCreateKeyA

RegCloseKey

RegOpenKeyA

ws2_32.dll

VirtualQuery failed for %d bytes at address %p

Unknown pseudo relocation protocol version %d.

Unknown pseudo relocation bit size %d.

GCC: (tdm-2) 4.8.1

KERNEL32.dll

msvcrt.dll