1435540cdf223d20c213fa93312ca93af8a119baea2ca6e2718836b1d1eb0af7

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 13:09

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General

Target

a2a6956d93e6384f0f5114b002e6ac02_JaffaCakes118.dll
Size

33KB
MD5

a2a6956d93e6384f0f5114b002e6ac02
SHA1

1933551b6d716b88dcc5c4617a76b399d7374453
SHA256

1435540cdf223d20c213fa93312ca93af8a119baea2ca6e2718836b1d1eb0af7
SHA512

57edc5bc688be73409625d426962e7d2a20eb1d7b022b88d83ef407ae1dcc397da975267672e8babccc73f0c07d1367560e8d3b36fafcca4536507424bcc19ca
SSDEEP

768:KqZlcJf/ZHQeEWBmsyyl9v9DaJB2D8jrQCi0k8EJ:KqZlcJfRHiWBcayGw8Ci098

Score

7^/10

discovery persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
3176	rundll32.exe
3176	rundll32.exe
3564	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\vtUnmKCR.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F7E9D97-BEE7-4F55-811D-19F15F2120AD}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F7E9D97-BEE7-4F55-811D-19F15F2120AD}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F7E9D97-BEE7-4F55-811D-19F15F2120AD}\InprocServer32\ = "C:\\Windows\\SysWow64\\vtUnmKCR.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F7E9D97-BEE7-4F55-811D-19F15F2120AD}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3176	rundll32.exe
3176	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3176	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3176	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3176	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 3176	3344	rundll32.exe	84
PID 3344 wrote to memory of 3176	3344	rundll32.exe	84
PID 3344 wrote to memory of 3176	3344	rundll32.exe	84
PID 3176 wrote to memory of 616	3176	rundll32.exe	5
PID 3176 wrote to memory of 3564	3176	rundll32.exe	97
PID 3176 wrote to memory of 3564	3176	rundll32.exe	97
PID 3176 wrote to memory of 3564	3176	rundll32.exe	97

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2a6956d93e6384f0f5114b002e6ac02_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2a6956d93e6384f0f5114b002e6ac02_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3176
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\vtUnmKCR.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:3564

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\vtUnmKCR.dll

Filesize
33KB

MD5
a2a6956d93e6384f0f5114b002e6ac02

SHA1
1933551b6d716b88dcc5c4617a76b399d7374453

SHA256
1435540cdf223d20c213fa93312ca93af8a119baea2ca6e2718836b1d1eb0af7

SHA512
57edc5bc688be73409625d426962e7d2a20eb1d7b022b88d83ef407ae1dcc397da975267672e8babccc73f0c07d1367560e8d3b36fafcca4536507424bcc19ca

Download Submit
memory/3176-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3176-1-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3176-8-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3176-10-0x0000000001010000-0x0000000001020000-memory.dmp

Filesize
64KB

Download
memory/3564-15-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download