Trojan.Generic.7752227_983c82f145

by malwarelabrobot on April 19th, 2015 in Malware Descriptions.

Susp_Dropper (Kaspersky), Trojan.Generic.7752227 (B) (Emsisoft), Trojan.Generic.7752227 (AdAware), Tdl4.YR (Lavasoft MAS)
Behaviour: Trojan


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

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 983c82f145d4c3fed036172cd5f57405
SHA1: 40d540470db2c04c5b65eb26e54dc065e96d0d7a
SHA256: fe7d9deadceafd28b6ddbe36878e2f6693c3ff48762f91f07ec668b429759f16
SSDeep: 12288:1LoD/GWZlBGpHc8o0v9mSbmO8SHL30q5x2Tzg2ik:ColVv9m4F8s4/Utk
Size: 609792 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: LLC Pentagon
Created at: 2009-07-14 02:42:43
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).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

Autorun.exe:1564
%original file name%.exe:612
Adobe.exe:772

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

svchost.exe:1104
spoolsv.exe:1436

Mutexes

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

File activity

The process %original file name%.exe:612 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\IXP000.TMP\Autorun.exe (17142 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\Adobe.exe (4232 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\Autorun.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP (0 bytes)

The process Adobe.exe:772 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\1.tmp (1281 bytes)

The Trojan deletes the following file(s):

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

Registry activity

The process Autorun.exe:1564 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6E 26 17 8C 66 51 80 09 C7 C4 EB 63 67 3A C1 0F"

The process %original file name%.exe:612 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "89 4C 78 45 2F B8 2D 5A 66 EF FB 84 27 94 D9 42"

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\RunOnce]
"wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

The Trojan deletes the following value(s) in system registry:
The Trojan disables automatic startup of the application by deleting the following autorun value:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0"

The process Adobe.exe:772 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "01 90 DE 66 BC 20 1B 20 C3 AB 39 45 7E 35 4A 40"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4.tmp,"

Dropped PE files

MD5 File path
49b0c624823818fd9b819c0aa2a701f9 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\4.tmp

HOSTS file anomalies

No changes have been detected.

Rootkit activity

Using the driver "UNKNOWN" the Trojan controls loading executable images into a memory by installing the Load image notifier.
Using the driver ROOTKITPATH the Trojan intercepts DriverStartIO in a miniport driver of a hard drive controller (ATAPI) to handle request to its own files:

StartIo

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 43748 44032 4.53606 3aeb6fb8fe8ab95f2462e3afb8b8acd3
.data 49152 8796 1536 4.57321 f3764284f4d25ed35f75b9c16e1ab608
.rsrc 61440 559300 559616 5.5174 44b8c41b0d060a51a8a3cb8845a915b1
.reloc 622592 3480 3584 3.33168 bc74eb2a181cf1029262828db6ac5b5d

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

svchost.exe_1104_rwx_025F0000_0001B000:

Fmsvcrt.dll
%d %d %d %d %d %d
hXXps://
hXXp://
.com/
Global\C3819288-93FA-4E29-A254-BD9476B53C20
cfg.ini
%s\%s
bckfg.tmp
lsflt7.ver
0;225;224;77;38;56;16;74;75
maxhttpredirects
software\microsoft\windows\currentversion\internet settings
enablehttp1_1
software\microsoft\windows\currentversion\internet settings\zones\3
{AEBA21FA-782A-4A90-978D-B72164C80120}
{A8A88C49-5EB2-4990-A1A2-0876022C854F}
Opera\Opera\operaprefs.ini
\profile\operaprefs.ini
\prefs.js
network.cookie.cookieBehavior
Mozilla\Firefox\Profiles\
/login/;/tweet/;action=embed-flash;/faq/;/terms/;/contact/;/Forgotpassword/
hXXp://%s/?xurl=%s&xref=%s
ole32.dll
winmm.dll
atl.dll
oleaut32.dll
clk=%s&bid=%s&aid=%s&sid=%s&rd=%s
n%D,3
Global\6C29A0C8-62C6-415C-9538-B87690BC58D2
lsash.xp
%d|%d|%s|%s
cmd.dll
cmd64.dll
setup.exe
%u|%s
%s=%u|%s
%[^.].%[^(](%[^)])
command|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s
masks|%s
hXXp://NO REF/
.softgeek.
%s#%s
url|%s%s|
%s.dll
kernel32.dll
12345678
0123456789
.text
.rdata
HTTP/1.1 302 Found
Location: %s
HTTP/1.1 200 OK
Content-Length: %d
%sConnection: close
<body><a id=link target=_top></body><script>var url='%s';try{var x=document.getElementById('link');x.href=url;x.click()}catch(e){try{var x=parent?parent:window;x.location.replace(url)}catch(e){}}</script><noscript><META http-equiv="refresh" content="0;URL='%s'"></noscript>
<iframe src='%s' style='visibility:hidden;'></iframe>
<script>history.back()</script>
Set-Cookie: %s; expires=%s, u-%s-u u:u:u GMT
urlmon.dll
Global\56684A82-D074-4384-AEB9-D1A40041D9FB
chrome
wermgr.exe
-queuereporting_svc
firefox
opera
Global\B10C62E4-234C-4BF6-A1D5-1C0309CED145
svchost.exe
Global\a68d7de8-eba6-4a54-90e0-9cb9d93b3ed7
Global\cc51461b-e32a-4883-8e97-e0706dc65415
keywords
Accept-Language: %s
%s hXXp://%s/?xurl=%s&xref=%s
%s %s
1.8|%s|%s|%s|%s|%s|%s
software\classes\http\shell\open\command
<>:"/\|?*
%s-%s
. d SP.%s
google;yahoo;bing.;live.com;msn.com;altavista.com;ask.com;exalead.com;excite.com;dogpile.com;metacrawler.com;webcrawler.com;alltheweb.com;.lycos.;gigablast.com;cuil.com;.aol.;entireweb.com;.search.com;mamma.com;mytalkingbuddy.com;about.com;conduit.com;alexa.com;alltheinternet.com;blinkx.com;aolcdn.com;othersonline.com;everesttech.net;adrevolver.com;tribalfusion.com;adbureau.net;abmr.net;gstatic.com;virtualearth.net;atdmt.com;ivwbox.;powerset.net;yimg.com;2mdn.net;doubleclick.net;iwon.com;scorecardresearch.com;66.235.120.66;66.235.120.67;ytimg.com;infospace.com;edgesuite.net;superpages.com;lygo.com;compete.com;firmserve.com;worthathousandwords.com;yieldmanager.com;wazizu.com;meedea.com;atwola.com;doubleverify.com;tacoda.net;truveo.com;openx.org;adcertising.com;twimg.com;picsearch.com;oneriot.com;.com.com;flickr.com;searchvideo.com;.tqn.com;myspacecdn.com;fimservecdn.com;alexametrics.com
%u|%u
ver=%s&bid=%s&aid=%s&sid=%s&rd=%s&eng=%s&q=%s
hXXp://%s%s
VVV.google.
search.yahoo.com
.altavista.com
/web/results
.ask.com
VVV.exalead.com
/search/web/results
VVV.alltheweb.com
search.lycos.
tab=web
gigablast.com
cuil.com
.aol.
entireweb.com
md=web
VVV.search.com
VVV.mamma.com
mytalkingbuddy.com
searchservice.myspace.com
type=web
search.conduit.com
search.toolbars.alexa.com
alltheinternet.com
/ws/results/web/
?xurl=
http/1.
mozilla
windowsupdate
3059874780
1429339050
\\?\globalroot\device\0000096c\7bd8ce81\lsash.xp
%WinDir%\System32\svchost.exe
\\?\globalroot\device\0000096c\7bd8ce81
\\?\globalroot\device\0000096c\7bd8ce81\cfg.ini
WinExec
SHEnumKeyExA
ExitWindowsEx
HttpOpenRequestA
HttpSendRequestA
HttpQueryInfoW
InternetCrackUrlA
`.rdata
@.data
.reloc
rt.dll
 https
l\C3819288-93FA-4E29-A254-BD9476]
cfg.inics\
HTTP/1.1 3
%u,bmr
.]TCpP
KERNEL32.DLL
ADVAPI32.dll
imagehlp.dll
ntdll.dll
SHELL32.dll
SHLWAPI.dll
USER32.dll
WININET.dll
WebBrowser
127.0.0.1
.google.
%s-%d
eplorer\iexplore.exe" -nohome

spoolsv.exe_1436_rwx_00FA0000_00047000:

.itext
@.text
`.edata
@.rdata
@.data
.rsrc
@.reloc
GDI32.dll
ntdll.dll
COMCTL32.dll
VkKeyScanW
GetKeyState
GetKeyboardLayout
MapVirtualKeyExA
USER32.dll
SHLWAPI.dll
KERNEL32.dll
QZWwgQcPLxod.exe
(úgX
@^.Rp
5"A%FV}
.iENS2
[|.Bk
.dr=/
XWqq%X
#.kuI
/?f!.Xxw
9F.fB
.YP~G
9.RBV
Yf3.GY@
R:\fhfdggi\nxTulcpk\EbykHt\jebzvFAh\yfoZqfmT.pdb
.sWg(
7%8 858}8
3 3$3(3,3034383<3
F:\gjkLHJjfhkjl\LKJDkljkdlj\KJDFj.hhg

spoolsv.exe_1436_rwx_01360000_00027000:

.text
`.rdata
@.data
.config
.reloc
t%SSS
N. d SP.
%x%x%x%x%x%x
%s|%s|%s|%x|%x|%s|%x|%x|prn15
%[^;];%[^;];%[^;];
kernel32.dll
ntdll.dll
\\?\globalroot\systemroot\system32\kernel32.dll
%s\cfg.ini
%s\config.ini
%s\drv32
cmd.dll
%s\bckfg.tmp
%s\cmd.dll
%s\cmd64.dll
%[^|]|%[^|]|%s
system\currentcontrolset\services\%x
\\?\globalroot%s\cmd.dll
\\?\globalroot%s\cfg.ini
\\?\globalroot%s\bckfg.tmp
%d.%d.%d %d:%d:%d
\\?\globalroot%s\ldr16
\\?\globalroot%s\ldr32
\\?\globalroot%s\ldr64
\\?\globalroot%s\drv64
\\?\globalroot%s\cmd64.dll
cmd64.dll
\\?\globalroot%s\drv32
\\?\globalroot\systemroot\system32\kdcom.dll
\\?\globalroot\systemroot\system32\hal.dll
\\?\globalroot\systemroot\system32\ntoskrnl.exe
\\?\globalroot\systemroot\system32\drivers\etc\hosts
aid=%s
sid=%s
installdate=%s
*=cmd.dll
* (x64)=cmd64.dll
[cmd]
srv=%s
wsrv=%s
psrv=%s
cfg.ini
bckfg.tmp
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><ms_asmv2:trustInfo xmlns:ms_asmv2="urn:schemas-microsoft-com:asm.v2"><ms_asmv2:security><ms_asmv2:requestedPrivileges><ms_asmv2:requestedExecutionLevel level="requireAdministrator"></ms_asmv2:requestedExecutionLevel></ms_asmv2:requestedPrivileges></ms_asmv2:security></ms_asmv2:trustInfo></assembly>
ZwConnectPort
spoolsv.exe
GetWindowsDirectoryW
KERNEL32.dll
RegCreateKeyA
RegCloseKey
ADVAPI32.dll
SHDeleteKeyA
SHLWAPI.dll
imagehlp.dll
PSAPI.DLL
RPCRT4.dll
InternetCrackUrlA
HttpOpenRequestA
HttpSendRequestA
WININET.dll
ShellExecuteW
SHELL32.dll
ole32.dll
WINSPOOL.DRV
.pnLu
`.reloc
kdcom.dll
ntoskrnl.exe
`.pdata
.AZ.X
9bCmd|
_).Cn^W;g3
>g?.yC
.PFkX
:F-I}|
.JOf~
O.BY#
\{x-x-x-x-xx}
\registry\machine\%S
\??\physicaldrive%d
services.exe
\??\globalroot\systemroot\system32\tasks\%x
\\?\globalroot%s
%s.manifest
%s\setup%u.exe
r\\?\globalroot%s


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. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    Autorun.exe:1564
    %original file name%.exe:612
    Adobe.exe:772

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

    %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\Autorun.exe (17142 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\Adobe.exe (4232 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (1281 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
    "wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

  6. Reboot the computer.

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

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