Trojan.SalityStub.F_3f68f43cfe – Adaware

Dynamic Analysis

Payload

Behaviour	Description
WormAutorun	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's file once a user opens a drive's folder in Windows Explorer.

Process activity

The Trojan creates the following process(es):No processes have been created.The Trojan injects its code into the following process(es):

%original file name%.exe:1156
Explorer.EXE:532

Mutexes

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

File activity

The process %original file name%.exe:1156 makes changes in the file system.

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

%WinDir%\system.ini (70 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (12 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (561 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (1336 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (561 bytes)
C:\yigot.exe (99 bytes)
C:\autorun.inf (313 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (272 bytes)
C:\totalcmd\TOTALCMD.EXE (854 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (0 bytes)
%WinDir%\caffc (0 bytes)

Registry activity

The process %original file name%.exe:1156 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_0" = "0"
"m3_1" = "1718420804"
"m3_0" = "17001001"
"m4_4" = "2646195636"
"m4_5" = "86519073"
"m3_5" = "69945096"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"

[HKCU\Software\Stvncyfrlda]
"m2_2" = "3470576471"
"m2_3" = "910908362"
"m2_0" = "5517"
"m2_1" = "1735293664"
"m2_6" = "1821804803"
"m4_2" = "3470581466"
"m2_4" = "2646190137"
"m2_5" = "86522028"

[HKCU\Software\Stvncyfrlda\168128873]
"1735290733" = "10"

[HKCU\Software\Stvncyfrlda]
"m3_3" = "927474798"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
"EnableLUA" = "0"

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

[HKCU\Software\Stvncyfrlda]
"m4_9" = "2732714709"
"m3_7" = "3573965266"
"m1_9" = "151879564"

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

[HKCU\Software\Stvncyfrlda]
"m2_8" = "997420773"
"m3_6" = "1838544551"

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

[HKCU\Software\Stvncyfrlda]
"m1_5" = "990974441"

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_6" = "1821809806"
"m4_1" = "1735290733"
"m3_4" = "2629490589"

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

[HKCU\Software\Stvncyfrlda]
"m3_2" = "3487544563"
"m1_4" = "2043211597"
"m1_7" = "2820037032"
"m1_6" = "942015960"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallOverride" = "1"

[HKCU\Software\Stvncyfrlda]
"m1_0" = "1431655765"
"m1_3" = "553799287"
"m1_2" = "2322242303"
"m1_1" = "692605188"

"m1_8" = "3256253133"
"m3_9" = "2749530364"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m3_8" = "980422977"

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

[HKCU\Software\Stvncyfrlda\168128873]
"-824385830" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"Hidden" = "2"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallOverride" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"910904903" = "0"

[HKCU\Software\Stvncyfrlda]
"m2_7" = "3557105270"

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"-1648771660" = "30"
"1821809806" = "0200687474703A2F2F7061647275702E636F6D2F736F62616B612E6173707800687474703A2F2F6B756B75312E696E666F696572"

[HKCU\Software\Stvncyfrlda]
"m4_7" = "3557100539"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "9D 5B A3 C7 8D E9 C3 33 5D 55 7A 74 51 53 6B D2"

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

[HKCU\Software\Stvncyfrlda]
"m4_3" = "910904903"
"m2_9" = "2732719960"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallDisableNotify" = "1"
[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\Stvncyfrlda\168128873]
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

[HKLM\SOFTWARE\Microsoft\Security Center]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"86519073" = "53"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusOverride" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_8" = "997423976"

Firewall notifications are disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DisableNotifications" = "1"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify" = "1"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:]
"%original file name%.exe" = "c:\%original file name%.exe:*:Enabled:ipsec"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusDisableNotify" = "1"

A firewall is disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"EnableFirewall" = "0"

Dropped PE files

MD5	File path
0e877f86bf727218d9a921966fecc642	c:\yigot.exe

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's file once a user opens a drive's folder in Windows Explorer.

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):No processes have been created.
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%WinDir%\system.ini (70 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (12 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (561 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (1336 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (561 bytes)
C:\yigot.exe (99 bytes)
C:\autorun.inf (313 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (272 bytes)
C:\totalcmd\TOTALCMD.EXE (854 bytes)
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
Reboot the computer.

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

Static Analysis

VersionInfo

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	69632	66048	5.53653	587520b59aeb3391f069a29e5b21cb53

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 748
0fd1d5b37f2181ebedd1e9470041a4bd
7557c6e39adbd55fdc0d6bf363ee5605
2e6d717bbe55a36bda43ff1436282980
7e2d1db9f08fc5d180c2825ba77a79e0
7e1b85110747aebeec43825bae93dce0
0815861a0c3c467ddfbdc2d4495531a7
e63fc293a650d310e06f54c5b455cd51
94881345994fb9dbd6494157bc41384b
0fc6b457f337f01ccce06a3e97f63973
37cac76c77cca91844f5da058e7457e5
41e0dec85ebe2c638468506dcaa40573
5c77015572a4e2e7563f8718d2411924
3bcf5fb37c19c89b1dc03e188fc9da8f
017a34c9b13968311c45cbc15008219b
84cbd587296c8a0a98ea0a32c8ef67c5
bfa3703f564fe409fab9ae790b4e2cc0
1449514417e7f823d062278a0ff23ada
756f17cae9cd8ca021de42cc5662da86
175db51703824ee7e48104db9ec1824d
b49ccb1192b981cf404e07f5f5e5318a
88a3fdd5144ba427529c437f8f373140
85f65d4e992c54ad20e0e0bb4749ba20
9d92f0977717e368d90e2f2d8e7cfd20
7f6649d18b0a0a7115e50869e7b61880
34216723a00a49e47d5f4fc7a84462e0

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

%original file name%.exe_1156:

.text

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

f68f43cfe3898062be106adb6c4aae7.exe

hXXp://padrup.com/sobaka.aspx

hXXp://kuku1.infoier

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

h.rdla&

mH.MN8

T4.At%

S.twa

.klkjw:9fqwiBumW

.sysa

Zc.pBTa

~%s:*:yd:

.!.VF*

.d&?%x=

GUrlA'

"\'Web%w}

HTTP)s'PS

2GUARDCMD

o.ENHCDM

wWEBWUPD

MM.PF

%xn'[

>>?456789:;

!"#$%&'()* ,-./4

qn%CXf

UP*dB.PPd@.

%FoAN-x

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_1156_rwx_00401000_00011000:

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

.text

f68f43cfe3898062be106adb6c4aae7.exe

hXXp://padrup.com/sobaka.aspx

hXXp://kuku1.infoier

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

h.rdla&

mH.MN8

T4.At%

S.twa

.klkjw:9fqwiBumW

.sysa

Zc.pBTa

~%s:*:yd:

.!.VF*

.d&?%x=

GUrlA'

"\'Web%w}

HTTP)s'PS

2GUARDCMD

o.ENHCDM

wWEBWUPD

MM.PF

%xn'[

>>?456789:;

!"#$%&'()* ,-./4

qn%CXf

UP*dB.PPd@.

%FoAN-x

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_1156_rwx_00520000_010BA000:

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

.text

KERNEL32.dll

.reloc

USER32.dll

h.rdata

H.data

ntoskrnl.exe

Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)

Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache

Software\Microsoft\Windows\CurrentVersion\Internet Settings

Software\Microsoft\Windows\CurrentVersion

hXXp://VVV.klkjwre9fqwieluoi.info/

hXXp://kukutrustnet777888.info/

Software\Microsoft\Windows\CurrentVersion\policies\system

Software\Microsoft\Windows\ShellNoRoam\MUICache

%s:*:Enabled:ipsec

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

GdiPlus.dll

hXXp://

ipfltdrv.sys

VVV.microsoft.com

?%x=%d

&%x=%d

SYSTEM.INI

USER32.DLL

.%c%s

\\.\amsint32

NTDLL.DLL

autorun.inf

ADVAPI32.DLL

win%s.exe

%s.exe

WININET.DLL

InternetOpenUrlA

avast! Web Scanner

Avira AntiVir Premium WebGuard

cmdGuard

cmdAgent

Eset HTTP Server

ProtoPort Firewall service

SpIDer FS Monitor for Windows NT

Symantec Password Validation

WebrootDesktopFirewallDataService

WebrootFirewall

%d%d.tmp

SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

%s\%s

%s\Software\Microsoft\Windows\CurrentVersion\Ext\Stats

Software\Microsoft\Windows\CurrentVersion\Ext\Stats

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects

KERNEL32.DLL

Explorer.exe

A2CMD.

ASHWEBSV.

AVGCC.AVGCHSVX.

DRWEB

DWEBLLIO

DWEBIO

FSGUIEXE.

MCVSSHLD.

NPFMSG.

SYMSPORT.

WEBSCANX.

%c%d_%d

purity_control_%x

.adata

M_%d_

?456789:;

!"#$%&'()* ,-./0123

mong%WinDir%\

%WinDir%\hywjfubtsnl.log

hXXp://padrup.com/sobaka.aspx

hXXp://kuku1.infoier

%System%\drivers\ojhik.sys

8315314107

SHELL32.DLL

ShellExecuteA

GetProcessHeap

GetWindowsDirectoryA

RegEnumKeyExA

RegDeleteKeyA

RegOpenKeyExA

RegCreateKeyA

RegCloseKey

SHFileOperationA

&3&3&3&389

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

WS2_32.dll

Explorer.EXE_532_rwx_01E00000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

%original file name%.exe_1156_rwx_023C0000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

%original file name%.exe_1156_rwx_024D0000_00001000:

|%original file name%.exeM_1156_

Explorer.EXE_532_rwx_01E10000_00001000:

|explorer.exeM_532_

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps