c92aba810a5173a52aa722b5503cc9aff0a80ef733e642e444f28ab8ef1cccbe

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
23/06/2024, 23:08

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General

Target

03bd52ce9cae4cdc062a5226008b8d77_JaffaCakes118.dll
Size

236KB
MD5

03bd52ce9cae4cdc062a5226008b8d77
SHA1

14ff4a29e96122d026cded31df79e1aab39fa9f3
SHA256

c92aba810a5173a52aa722b5503cc9aff0a80ef733e642e444f28ab8ef1cccbe
SHA512

58b0951839a89a51b15ad33c54d61d0b0b159cfbaa619f2e9e2156527877039d8206b61e02ee17f8ff103fb4ae5b67c4c358609cda8b57f25a8f98a9d3040d15
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMM:Go256vS0RJAL+lHPKi40+66iwkD0X

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\zsitroxpx = "{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mfvgebkck.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\mfvgebkck.dll	rundll32.exe
File created	C:\Windows\SysWOW64\undomjsks.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\undomjsks.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}\InprocServer32\ = "C:\\Windows\\SysWow64\\undomjsks.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5a23b071-d2ab-27f0-e3bc-d2ab38f9b66c}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2112	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2112	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28
PID 1152 wrote to memory of 2112	1152	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03bd52ce9cae4cdc062a5226008b8d77_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\03bd52ce9cae4cdc062a5226008b8d77_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\SysWOW64\mfvgebkck.dll

Filesize
625KB

MD5
95e2376b3323f062eb562b8586d0f14a

SHA1
453d4c3bf4a489433b593420a37bbffb7749875a

SHA256
bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

SHA512
b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

Download Submit
memory/2112-0-0x0000000000170000-0x00000000001B4000-memory.dmp

Filesize
272KB

Download
memory/2112-1-0x0000000000171000-0x0000000000178000-memory.dmp

Filesize
28KB

Download
memory/2112-7-0x0000000000170000-0x00000000001B4000-memory.dmp

Filesize
272KB

Download
memory/2112-10-0x0000000000170000-0x00000000001B4000-memory.dmp

Filesize
272KB

Download