39a6c0df9f429ec14084c8d78c47a3e0a1f2eb2958626befea4b6c7de4321106

Analysis

max time kernel
92s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
07-07-2024 04:23

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General

Target

29ba19f34fc5d4e5e6d2e07de2a0aa8a_JaffaCakes118.dll
Size

36KB
MD5

29ba19f34fc5d4e5e6d2e07de2a0aa8a
SHA1

d1fa9ddae40d4be7c19085fa110abffb1889ca5a
SHA256

39a6c0df9f429ec14084c8d78c47a3e0a1f2eb2958626befea4b6c7de4321106
SHA512

a4432ff9c0599858268a48849827526e36252bbe34cf5c25a238bb90ede0f9bd57f17b7ee55673700521ff075674a5dde9c4b49dbd15abd63147c5e814f4f4ba
SSDEEP

768:ijgiGxy+iC146BDRK97J3+ZFWo2iU+DaLW:CMy+hQYFWuaLW

Score

8^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2480455240-981575606-1030659066-1000\Control Panel\International\Geo\Nation	cmd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2480455240-981575606-1030659066-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4608	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3908	rundll32.exe
3908	rundll32.exe
3908	rundll32.exe
3908	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 3908	2304	rundll32.exe	82
PID 2304 wrote to memory of 3908	2304	rundll32.exe	82
PID 2304 wrote to memory of 3908	2304	rundll32.exe	82
PID 3908 wrote to memory of 3312	3908	rundll32.exe	84
PID 3908 wrote to memory of 3312	3908	rundll32.exe	84
PID 3908 wrote to memory of 3312	3908	rundll32.exe	84
PID 3312 wrote to memory of 4608	3312	cmd.exe	87
PID 3312 wrote to memory of 4608	3312	cmd.exe	87
PID 3312 wrote to memory of 4608	3312	cmd.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\29ba19f34fc5d4e5e6d2e07de2a0aa8a_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\29ba19f34fc5d4e5e6d2e07de2a0aa8a_JaffaCakes118.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3908
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Checks computer location settings
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:3312
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

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