b939cc07d1496f01db3298701f66ee6ac3d991d1b795e735d9f6d39ed1947d4c

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240708-en
resource tags

arch:x64arch:x86image:win10v2004-20240708-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 10:11

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General

Target

2ff3d54720e9f7c5353fb24b943d3a13_JaffaCakes118.dll
Size

36KB
MD5

2ff3d54720e9f7c5353fb24b943d3a13
SHA1

8a03d3dede2d6dd8dfc395272d0a6515b4dfef35
SHA256

b939cc07d1496f01db3298701f66ee6ac3d991d1b795e735d9f6d39ed1947d4c
SHA512

2ae6d2b6f25991d7f3830bd49d06923268169769b92b76f9396c3f432e5d6ad9a4aab24700ff6cb2104ee793b540610fbd3c2bac8c442d1033f677c976272d04
SSDEEP

768:IfZd8dJN5kXcyXrCD1tDMByGqnxGm3+2VWSaLW:IQdEcyXrC/GsnsIVWSaLW

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-1-5-21-3310979990-555183016-1244931625-1000\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-1-5-21-3310979990-555183016-1244931625-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4092	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
452	rundll32.exe
452	rundll32.exe
452	rundll32.exe
452	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 452	2892	rundll32.exe	82
PID 2892 wrote to memory of 452	2892	rundll32.exe	82
PID 2892 wrote to memory of 452	2892	rundll32.exe	82
PID 452 wrote to memory of 2456	452	rundll32.exe	83
PID 452 wrote to memory of 2456	452	rundll32.exe	83
PID 452 wrote to memory of 2456	452	rundll32.exe	83
PID 2456 wrote to memory of 4092	2456	cmd.exe	86
PID 2456 wrote to memory of 4092	2456	cmd.exe	86
PID 2456 wrote to memory of 4092	2456	cmd.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2ff3d54720e9f7c5353fb24b943d3a13_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2ff3d54720e9f7c5353fb24b943d3a13_JaffaCakes118.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:452
- - 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:2456
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:4092

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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