78f959d40b2f9ef8702e9e4fdd46cc44cd436f1648b89f9e34e90e9ed35d7739

Analysis

max time kernel
94s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 02:23

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General

Target

dd7a47b0582b8b6166000ed05f977415_JaffaCakes118.dll
Size

36KB
MD5

dd7a47b0582b8b6166000ed05f977415
SHA1

4b0bb3c025d9e2d17dffec50afafc8b8a7db534f
SHA256

78f959d40b2f9ef8702e9e4fdd46cc44cd436f1648b89f9e34e90e9ed35d7739
SHA512

6ca03309ccdf28c1a170370a3c0ac56b4546fac7886645a10bb791bf0a4654d286bba383390a5a49cc2b0d6524a25d406560ffe5e61ebb5961c813a44781f902
SSDEEP

768:IjgiGxy+iC146BDRK97J3+ZFWo2iU+DaLW:8My+hQYFWuaLW

Score

8^/10

discovery 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-1-5-21-786284298-625481688-3210388970-1000\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

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe

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-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4564	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2436	rundll32.exe
2436	rundll32.exe
2436	rundll32.exe
2436	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 2436	4784	rundll32.exe	83
PID 4784 wrote to memory of 2436	4784	rundll32.exe	83
PID 4784 wrote to memory of 2436	4784	rundll32.exe	83
PID 2436 wrote to memory of 1632	2436	rundll32.exe	84
PID 2436 wrote to memory of 1632	2436	rundll32.exe	84
PID 2436 wrote to memory of 1632	2436	rundll32.exe	84
PID 1632 wrote to memory of 4564	1632	cmd.exe	88
PID 1632 wrote to memory of 4564	1632	cmd.exe	88
PID 1632 wrote to memory of 4564	1632	cmd.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd7a47b0582b8b6166000ed05f977415_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd7a47b0582b8b6166000ed05f977415_JaffaCakes118.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1632
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      System Location Discovery: System Language Discovery
      Runs .reg file with regedit
      PID:4564

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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