Gen.Variant.Kazy.665845_b0e7983080 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:224
fuxeo.exe:1304

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

Explorer.EXE:1140

Mutexes

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

File activity

The process %original file name%.exe:224 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\tmpc18e3a64.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Igqeor\fuxeo.exe (206 bytes)

Registry activity

The process %original file name%.exe:224 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "7A 6C 28 53 2D 2E E9 BF F4 0F 37 06 47 A6 75 A7"

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

The process fuxeo.exe:1304 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "00 6F C2 9E B0 8D 07 BC 1B BB E7 77 EB CB 4A CB"

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

Dropped PE files

MD5	File path
04373472111b2717fb0dcd83e16e9823	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Igqeor\fuxeo.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

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*

Scan a system with an anti-rootkit tool.
Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:224
fuxeo.exe:1304
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc18e3a64.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Igqeor\fuxeo.exe (206 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

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	20951	20992	4.626	85dbb9033e1c5d4930f9b131d2194cf3
.rdata	28672	520	1024	1.76529	9c4d7b015c69e8c083c60700145db15b
.data	32768	1392	1024	3.2983	371fbc0ec159d0317abde17f67ffa72b
.rsrc	36864	1136	1536	2.36684	38b6a710d2a4c2dba203b10f105d0c50
.reloc	40960	180854	181248	5.54292	0f5d02e369ad500f20fc419b894a0a99

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
38a4f47063688add718be503ca7c190e

Network Activity

URLs

URL	IP
hxxp://62.109.7.137/googleAD/update/conf.bin

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /googleAD/update/conf.bin HTTP/1.1

Accept: */*

User-Agent: Mozilla/5.0 (compatible; MSIE 6.0; Windows NT 6.2)

Host: 62.109.7.137

Cache-Control: no-cache

HTTP/1.1 404 Not Found

Server: nginx

Date: Sat, 10 Oct 2015 09:55:37 GMT

Content-Type: text/html; charset=iso-8859-1

Content-Length: 222

Connection: keep-alive

Keep-Alive: timeout=60

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /googleAD/update/conf.bin was not found on this server.</p>.</body></html>.....

GET /googleAD/update/conf.bin HTTP/1.1

Accept: */*

User-Agent: Mozilla/5.0 (compatible; MSIE 6.0; Windows NT 6.2)

Host: 62.109.7.137

Cache-Control: no-cache

HTTP/1.1 404 Not Found

Server: nginx

Date: Sat, 10 Oct 2015 09:55:37 GMT

Content-Type: text/html; charset=iso-8859-1

Content-Length: 222

Connection: keep-alive

Keep-Alive: timeout=60

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /googleAD/update/conf.bin was not found on this server.</p>.</body></html>.HTTP/1.1 404 Not Found..Server: nginx..Date: Sat, 10 Oct 2015 09:55:37 GMT..Content-Type: text/html; charset=iso-8859-1..Content-Length: 222..Connection: keep-alive..Keep-Alive: timeout=60..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /googleAD/update/conf.bin was not found on this server.</p>.</body></html>.....

Map

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

Strings from Dumps

Explorer.EXE_1140_rwx_01E00000_0002C000:

.text

`.data

.reloc

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

HTTP/1.1

hXXp://62.109.7.137/googleAD/update/conf.bin

Mozilla/5.0 (compatible; MSIE 6.0; Windows NT 6.2)

pufjwdx.jvh

" !=%(>";;

=225;6%%7!=

3:6 1*7=$;-

*4*-0*1?7!

MK[(bocmdgs

15#77??68.

&'/(

$!*4,#)<:>

mfh{g~amzgs.dgg

:; 1299;2

>.Rdd

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

urlmon.dll

cabinet.dll

hXXp://

hXXps://

HTTP/1.

hXXp://VVV.google.com/webhp

t7SSSh

t"SSSh

GetProcessHeap

KERNEL32.dll

MapVirtualKeyW

ExitWindowsEx

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

SetKeyboardState

GetKeyboardState

MsgWaitForMultipleObjects

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

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

HttpAddRequestHeadersA

HttpSendRequestA

HttpSendRequestExA

HttpSendRequestExW

HttpSendRequestW

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

=?>#?.?;?

9%9)9/939

SysShadow

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

cGlobal\XXX

Global\{ACDE96FE-DEF6-99E0-29F3-E3609A941101}

%Documents and Settings%\%current user%\Application Data

{E4AB7824-85C8-1C53-77BA-1BBC62C761EF}

%Documents and Settings%\%current user%\Application Data\Liis\maork.uzg

%Documents and Settings%\%current user%\Application Data\Liis

maork.uzg

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps