Gen.Variant.Graftor.52341_c49992bd51

by malwarelabrobot on November 1st, 2017 in Malware Descriptions.

Gen:Variant.Graftor.52341 (B) (Emsisoft), Gen:Variant.Graftor.52341 (AdAware), Trojan.Win32.FlyStudio.FD, GenericEmailWorm.YR, TrojanFlyStudio.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, EmailWorm


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: c49992bd514e4c3dd643e15013156036
SHA1: 32b87a58fad09bffbcb10d9b86a1b7bebacf2f01
SHA256: 7a1b9a87c195f5664c618a26c08eee75ca19cf59307f5941d66deb091dd88181
SSDeep: 24576:idtke32/4KkWKGzKy9RtGzemP6b5qTBXeUp:iPk3xjKeK6IQKXe
Size: 1359872 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, Armadillov171
Company: SystemHealer
Created at: 2017-08-22 07:31:18
Analyzed on: Windows7 SP1 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

Behaviour Description
EmailWorm Worm can send e-mails.


Process activity

The Trojan creates the following process(es):

%original file name%.exe:3784

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

Mutexes

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

File activity

The process %original file name%.exe:3784 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Windows\lj.ini (11 bytes)
C:\GX.exe (675 bytes)

Registry activity

The process %original file name%.exe:3784 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"FileDirectory" = "%windir%\tracing"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASMANCS]
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASMANCS]
"ConsoleTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"FileTracingMask" = "4294901760"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"MaxFileSize" = "1048576"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASMANCS]
"FileDirectory" = "%windir%\tracing"
"FileTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"ConsoleTracingMask" = "4294901760"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 41 00 00 00 09 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASAPI32]
"EnableConsoleTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c49992bd514e4c3dd643e15013156036_RASMANCS]
"MaxFileSize" = "1048576"
"EnableConsoleTracing" = "0"

Proxy settings are disabled:

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

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"
"AutoConfigURL"

Dropped PE files

MD5 File path
4276622b801a2f30dc0aa7eae7ad4909 c:\GX.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name:
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: Russian (Russia)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 494058 495616 4.52124 38419c8698f390c9e5fba6abc58456a5
.rdata 499712 771592 774144 4.26499 65e87a467ce48d899fa86ff4e0a3a226
.data 1273856 230026 61440 3.37933 e5f0482c111b7a97772b4321a0224e47
.rsrc 1507328 22788 24576 3.29148 0752634f60ea50d7513075cf6b622fd1

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL IP
hxxp://aixingcai22-1252807257.cosgz.myqcloud.com/LH.txt 157.255.8.164
hxxp://aixingcai22-1252807257.cosgz.myqcloud.com/jywp.txt 157.255.8.164


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET POLICY Unsupported/Fake Windows NT Version 5.0

Traffic

GET /LH.txt HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-1/2
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''LH.txt"
Content-Language: zh-CN
ETag: 1b74ee263ec685af9f725bd2c76be5edf4a56e39
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Tue, 22 Aug 2017 07:32:06 GMT
Content-Length: 2
......


GET /jywp.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-5/6
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''jywp.txt"
Content-Language: zh-CN
ETag: b063a82f3f71cd9ecd0ed94cb4f0e6943146ae81
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Sat, 26 Aug 2017 21:49:01 GMT
Content-Length: 6
...T......


GET /LH.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-1/2
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''LH.txt"
Content-Language: zh-CN
ETag: 1b74ee263ec685af9f725bd2c76be5edf4a56e39
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Tue, 22 Aug 2017 07:32:06 GMT
Content-Length: 2
......


GET /jywp.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-5/6
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''jywp.txt"
Content-Language: zh-CN
ETag: b063a82f3f71cd9ecd0ed94cb4f0e6943146ae81
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Sat, 26 Aug 2017 21:49:01 GMT
Content-Length: 6
...T..HTTP/1.1 200 OK..Content-Range: bytes 0-5/6..x-cos-storage-class
: STANDARD..Content-Type: text/plain..Content-Disposition: attachment;
 filename*="UTF-8''jywp.txt"..Content-Language: zh-CN..ETag: b063a82f3
f71cd9ecd0ed94cb4f0e6943146ae81..x-cos-object-type: normal..Accept-Ran
ges: bytes..Last-Modified: Sat, 26 Aug 2017 21:49:01 GMT..Content-Leng
th: 6.....T......


GET /LH.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-1/2
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''LH.txt"
Content-Language: zh-CN
ETag: 1b74ee263ec685af9f725bd2c76be5edf4a56e39
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Tue, 22 Aug 2017 07:32:06 GMT
Content-Length: 2
......


GET /jywp.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-5/6
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''jywp.txt"
Content-Language: zh-CN
ETag: b063a82f3f71cd9ecd0ed94cb4f0e6943146ae81
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Sat, 26 Aug 2017 21:49:01 GMT
Content-Length: 6
...T......


GET /LH.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-1/2
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''LH.txt"
Content-Language: zh-CN
ETag: 1b74ee263ec685af9f725bd2c76be5edf4a56e39
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Tue, 22 Aug 2017 07:32:06 GMT
Content-Length: 2
......


GET /jywp.txt HTTP/1.1


User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
Accept: */*
Host: aixingcai22-1252807257.cosgz.myqcloud.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Content-Range: bytes 0-5/6
x-cos-storage-class: STANDARD
Content-Type: text/plain
Content-Disposition: attachment; filename*="UTF-8''jywp.txt"
Content-Language: zh-CN
ETag: b063a82f3f71cd9ecd0ed94cb4f0e6943146ae81
x-cos-object-type: normal
Accept-Ranges: bytes
Last-Modified: Sat, 26 Aug 2017 21:49:01 GMT
Content-Length: 6
...T....

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

%original file name%.exe_3784:

.text
`.rdata
@.data
.rsrc
t$(SSh
~%UVW
u$SShe
Bv.SCv=kAv
user32.dll
kernel32.dll
advapi32.dll
ExitWindowsEx
EnumWindows
hXXp://aixingcai22-1252807257.cosgz.myqcloud.com/版本号.txt
\GX.exe
WuXia_Client.exe
\TCLS\Client.exe
C:\Users\Adminirtrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
lj.ini
\TD-LH.exe
TD-LH.exe
anonymous@123.com
.exe|.rar|.zip|.gif|.jpg|.mp3|.rm
hXXp://aixingcai22-1252807257.cosgz.myqcloud.com/TD-LH.exe
F%*.*f
CNotSupportedException
commctrl_DragListMsg
Afx:%x:%x:%x:%x:%x
Afx:%x:%x
COMCTL32.DLL
CCmdTarget
__MSVCRT_HEAP_SELECT
iphlpapi.dll
SHLWAPI.dll
MPR.dll
WINMM.dll
WS2_32.dll
VERSION.dll
GetProcessHeap
WinExec
KERNEL32.dll
GetKeyState
USER32.dll
GetViewportOrgEx
GDI32.dll
WINSPOOL.DRV
RegCloseKey
RegOpenKeyExA
RegCreateKeyExA
ADVAPI32.dll
ShellExecuteA
SHELL32.dll
ole32.dll
OLEAUT32.dll
COMCTL32.dll
WININET.dll
GetCPInfo
CreateDialogIndirectParamA
UnhookWindowsHookEx
SetWindowsHookExA
SetViewportOrgEx
OffsetViewportOrgEx
SetViewportExtEx
ScaleViewportExtEx
GetViewportExtEx
comdlg32.dll
.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
[%s:%d]
Range: bytes=%s-
[%s:%d]
PASS %s
PASS ******
USER %s
E:\dev\e\static_link\static_libs\source\downlib\mystrlib.cpp
SIZE %s
PORT
User-Agent: %s
Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)
Referer: %s
Host: %s
GET %s HTTP/1.1
HTTP/1.0
HTTP/1.1
hXXp://
Cookie: %s
%d, %s
\\192.168.0.129\TCP\1037
NSPlayer/9.0.0.2980; {%s}; Host: %s
rmff_fix_header: assuming data.size=%i
rmff_fix_header: assuming data.num_packets=%i
rmff_fix_header: assuming prop.num_packets=%i
rmff_fix_header: setting prop.data_offset from %i to %i
rmff_fix_header: correcting prop.num_streams from %i to %i
rmff_fix_header: correcting prop.size from %i to %i
%s %s %s
Session: %s
Cseq: %u
%*s %s
%*s %u
CSeq: %u
rtsp://%s:%i
rtsp://%s:%i/%s
ClientID: Linux_2.4_6.0.9.1235_play32_RN01_EN_586
GUID: 00000000-0000-0000-0000-000000000000
[%s:%d]
User-Agent: RealMedia Player Version 6.0.9.1235 (linux-2.0-libc6-i386-gcc2.95)
Range: npt=%s-
%s/streamid=1
%s/streamid=0
Transport: x-pn-tng/tcp;mode=play,rtp/avp/tcp;unicast;mode=play
If-Match: %s
RealChallenge2: %s, sd=%s
Title: %s
Copyright: %s
Author: %s
real: Content-length for description too big (> %uMB)!
Require: com.real.retain-entity-for-setup
SupportsMaximumASMBandwidth: 1
Bandwidth: %u
Challenge1: %s
hash output: %x %x %x %x
hash input: %x %x %x %x
stream=%u;rule=%u,
Illegal character '%c' in input.
.PAVCObject@@
.PAVCSimpleException@@
.PAVCMemoryException@@
.?AVCNotSupportedException@@
.PAVCResourceException@@
.PAVCUserException@@
.?AVCCmdTarget@@
.?AVCCmdUI@@
.?AVCTestCmdUI@@
.PAVCArchiveException@@
zcÁ
#include "l.chs\afxres.rc" // Standard components
PADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGhXXp://aixingcai22-1252807257.cosgz.myqcloud.com/LH.txt
hXXp://aixingcai22-1252807257.cosgz.myqcloud.com/jywp.txt
F:\QQ\Bin\QQ.exe
RASAPI32.dll
RegisterHotKey
UnregisterHotKey
WSOCK32.dll
HttpQueryInfoA
HttpSendRequestA
HttpOpenRequestA
InternetCrackUrlA
InternetCanonicalizeUrlA
%d%d%d
rundll32.exe shell32.dll,
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
%s <%s>
Reply-To: %s
From: %s
To: %s
Subject: %s
Date: %s
Cc: %s
%a, %d %b %Y %H:%M:%S
SMTP
c:\%original file name%.exe
(*.*)
1.0.0.0
(hXXp://VVV.eyuyan.com)


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. Terminate malicious process(es) (How to End a Process With the Task Manager):

    %original file name%.exe:3784

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

    C:\Windows\lj.ini (11 bytes)
    C:\GX.exe (675 bytes)

  4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).

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

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