a51f33a9961759219420cf4670e6075f388cfcee66db5ac89445a5581c6ef4cd

Analysis

max time kernel
95s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
11/07/2024, 10:19

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General

Target

38b8ab5100cb66c8e205e7e0267bab27_JaffaCakes118.dll
Size

36KB
MD5

38b8ab5100cb66c8e205e7e0267bab27
SHA1

b15a89879b8803ea56ec8e52fa8add54064f6e79
SHA256

a51f33a9961759219420cf4670e6075f388cfcee66db5ac89445a5581c6ef4cd
SHA512

605e8a55d146e11f3dbede3805f7685e89fdbab88044262060198a48522b9a3cccd23456e36542c758bf38325d35cbe5a23b12c9a849cbd5170864a934f0d360
SSDEEP

768:Nt8dldJN5LXcyXrCD1tDMByGqnXm3+AVWEvaLW:OdzcyXrC/GsnXiVWEvaLW

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-1-5-21-2990742725-2267136959-192470804-1000\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-1-5-21-2990742725-2267136959-192470804-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2660	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2348	rundll32.exe
2348	rundll32.exe
2348	rundll32.exe
2348	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 2348	4320	rundll32.exe	83
PID 4320 wrote to memory of 2348	4320	rundll32.exe	83
PID 4320 wrote to memory of 2348	4320	rundll32.exe	83
PID 2348 wrote to memory of 3444	2348	rundll32.exe	86
PID 2348 wrote to memory of 3444	2348	rundll32.exe	86
PID 2348 wrote to memory of 3444	2348	rundll32.exe	86
PID 3444 wrote to memory of 2660	3444	cmd.exe	89
PID 3444 wrote to memory of 2660	3444	cmd.exe	89
PID 3444 wrote to memory of 2660	3444	cmd.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b8ab5100cb66c8e205e7e0267bab27_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b8ab5100cb66c8e205e7e0267bab27_JaffaCakes118.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2348
- - 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:3444
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2660

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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