Trojan.Generic.14756430_c93bd6baa5 – Adaware

Dynamic Analysis

Payload

Behaviour	Description
EmailWorm	Worm can send e-mails.

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:1208

Mutexes

The following mutexes were created/opened:

ZonesLockedCacheCounterMutexZonesCounterMutexZonesCacheCounterMutexWininetProxyRegistryMutexWininetConnectionMutexWininetStartupMutexc:!documents and settings!adm!local settings!history!history.ie5!c:!documents and settings!adm!cookies!c:!documents and settings!adm!local settings!temporary internet files!content.ie5!_!MSFTHISTORY!_RasPbFileShimCacheMutex

File activity

The process %original file name%.exe:1208 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 %original file name%.exe:1208 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 1D 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EA 30 73 D6 5D 0D FE 78 4A B1 37 0D 33 29 D3 DC"

[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"

[HKCU\Software\Microsoft\Multimedia\DrawDib]
"vga.drv 1276x846x32(BGR 0)" = "31,31,31,31"

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

There are no dropped PE files.

HOSTS file anomalies

No changes have been detected.

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):No processes have been created.
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name: ??QQ53902022
Product Name: ?????
Product Version: 1.0.0.0
Legal Copyright: ?????????,????,????,???
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.0
File Description: ????????
Comments: ??????????(http://www.eyuyan.com)
Language: Chinese (Simplified, PRC)

Company Name: ??QQ53902022Product Name: ?????Product Version: 1.0.0.0Legal Copyright: ?????????,????,????,???Legal Trademarks: Original Filename: Internal Name: File Version: 1.0.0.0File Description: ????????Comments: ??????????(http://www.eyuyan.com)Language: Chinese (Simplified, PRC)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	502766	503808	4.53061	bb515a1a8d47995c05a5243556e8db20
.rdata	507904	171882	172032	4.50394	fc6fc921a5ecad37dd57663b48cf14dc
.data	679936	175624	61440	3.43665	361e78e176d46f3e42a2d2960a69f887
.rsrc	856064	23880	24576	3.34593	6e1d0c4ea6f7e6e5ef5d615d0d9a8e1a

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://cname.tool.la/
hxxp://ip.tool.la/	42.120.41.140

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET / HTTP/1.1

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)

Accept: */*

Host: ip.tool.la

Cache-Control: no-cache

HTTP/1.1 200 OK

Server: nginx/1.0.15

Date: Wed, 29 Jul 2015 08:41:03 GMT

Content-Type: text/html

Transfer-Encoding: chunked

Connection: keep-alive

Vary: Accept-Encoding

X-Powered-By: PHP/5.2.17p1

263b..<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "hXXp://VVV.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">.<html xmlns="hXXp://VVV.w3.org/1999/xhtml">.<head>.<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />.<title>IP........</title>.<meta name="Keywords" content="IP........,IP...." />.<meta name="Description" content="IP....................IP..........IP.........." />.<style type="text/css">..p_input {width:600px; margin:20px auto 0; text-align:center;}.body {font-size:14px;line-height:150%;}.form{margin:0;padding:0;}.h1{padding:0;margin:0;font-size:14px;}..result {width:600px; margin:0 auto; text-align:center; font-size:16px; font-weight:bold; color:#FF0000;}..vtitle {width:600px; margin:20px auto 0 auto; text-align:center;}..vcontent{width:600px; margin:0 auto;}..history {width:600px; margin:5px auto 0 auto; overflow:hidden;height:2em;}..history ul,.history li{padding:0; margin:0; list-style:none;}..history li {float:left;width:25%; overflow:hidden:}.</style>.<script type="text/javascript" language="javascript">.function checkIP().{.var ipArray,q,j;.q = document.frm.q.value;..if(/[A-Za-z_-]/.test(q)){. if(!/^([\w-] \.) ((com)|(net)|(org)|(gov\.cn)|(info)|(cc)|(com\.cn)|(net\.cn)|(org\.cn)|(name)|(biz)|(tv)|(cn)|(mobi)|(name)|(sh)|(ac)|(io)|(tw)|(com\.tw)|(hk)|(com\.hk)|(ws)|(travel)|(us)|(tm)|(la)|(me\.uk)|(org\.uk)|(ltd\.uk)|(plc\.uk)|(in)|(eu)|(it)|(jp))$/.test(q)){. alert("..............");. do

<<< skipped >>>

Map

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

Strings from Dumps

%original file name%.exe_1208:

.text

`.rdata

@.data

.rsrc

t$(SSh

~%UVW

u$SShe

wininet.dll

HttpOpenRequestA

HttpSendRequestA

HttpQueryInfoA

hXXp://

hXXp://192.168.1.1/userRpm/SysRebootRpm.htm?Reboot=Ã–Ã˜Ã†Ã´Ã‚Â·Ã“Ã‰Ã†Ã·

Mozilla/4.0 (compatible; MSIE 9.0; Windows NT 6.1; 125LA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

http=

https

HTTP/1.1

Content-Type: application/x-www-form-urlencoded

hXXps://

hXXp://ip.tool.la/

&newpassword2=

&newpassword=

&oldpassword=

/userRpm/ChangeLoginPwdRpm.htm?oldname=

/userRpm/RestoreDefaultCfgRpm.htm?RestoreFactory=Â»Ã–Â¸Â´Â³Ã¶Â³Â§Ã‰Ã¨Ã–Ãƒ

hXXp://192.168.1.1/userRpm/StatusRpm.htm?Disconnect=

hXXp://192.168.1.1/userRpm/StatusRpm.htm?Connect=

%S4WD

hg%fpM

S.Ac9SR

0.I%3s

,wAe.kI

aiUy'4xu

%c*@j

.eH'y

{&%U)

lj%4U

xe%CNs

9F.cLe

hJK.ZH

O.qt0

KERNEL32.DLL

COMCTL32.dll

GDI32.dll

MSIMG32.dll

MSVCRT.dll

MSVFW32.dll

USER32.dll

SkinH_EL.dll

@wininet.dll

hXXp://weibo.com/tuibao

192.168.1.1

192.168.2.1

%*.*f

CNotSupportedException

commctrl_DragListMsg

Afx:%x:%x:%x:%x:%x

Afx:%x:%x

COMCTL32.DLL

CCmdTarget

__MSVCRT_HEAP_SELECT

user32.dll

RASAPI32.dll

GetProcessHeap

WinExec

KERNEL32.dll

GetKeyState

SetWindowsHookExA

UnhookWindowsHookEx

EnumThreadWindows

EnumChildWindows

GetViewportOrgEx

WINMM.dll

WINSPOOL.DRV

RegCloseKey

RegOpenKeyExA

ADVAPI32.dll

ShellExecuteA

SHELL32.dll

ole32.dll

OLEAUT32.dll

WS2_32.dll

InternetCrackUrlA

InternetCanonicalizeUrlA

WININET.dll

GetCPInfo

CreateDialogIndirectParamA

SetViewportOrgEx

OffsetViewportOrgEx

SetViewportExtEx

ScaleViewportExtEx

GetViewportExtEx

comdlg32.dll

RegCreateKeyExA

.PAVCException@@

.PAVCNotSupportedException@@

.PAVCFileException@@

(*.prn)|*.prn|

(*.*)|*.*||

Shell32.dll

Mpr.dll

Advapi32.dll

User32.dll

Gdi32.dll

Kernel32.dll

(&07-034/)7 '

?? / %d]

%d / %d]

: %d]

(*.WAV;*.MID)|*.WAV;*.MID|WAV

(*.WAV)|*.WAV|MIDI

(*.MID)|*.MID|

(*.txt)|*.txt|

(*.JPG;*.BMP;*.GIF;*.ICO;*.CUR)|*.JPG;*.BMP;*.GIF;*.ICO;*.CUR|JPG

(*.JPG)|*.JPG|BMP

(*.BMP)|*.BMP|GIF

(*.GIF)|*.GIF|

(*.ICO)|*.ICO|

(*.CUR)|*.CUR|

%s:%d

windows

out.prn

%d.%d

%d / %d

%d/%d

Bogus message code %d

(%d-%d):

%ld%c

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)

HTTP/1.0

%s

Reply-To: %s

From: %s

To: %s

Subject: %s

Date: %s

Cc: %s

%a, %d %b %Y %H:%M:%S

SMTP

msctls_hotkey32

.PAVCObject@@

.PAVCSimpleException@@

.PAVCMemoryException@@

.?AVCNotSupportedException@@

.PAVCResourceException@@

.PAVCUserException@@

.?AVCCmdTarget@@

.?AVCCmdUI@@

.?AVCTestCmdUI@@

.PAVCArchiveException@@

zcÃ

193.138.244.231

c:\%original file name%.exe

#include "l.chs\afxres.rc" // Standard components

1, 0, 6, 6

- Skin.dll

(*.*)

1.0.0.0

(hXXp://VVV.eyuyan.com)

%original file name%.exe_1208_rwx_10000000_0003E000:

`.rsrc

L$(h%f

SSh0j