a61f6a50be7c672b56fd4e32de7fafd94108a5bd8ba79664c62aeaaa507d7ce8

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2024 21:16

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General

Target

81c67cc331cb5c138183b9576f8a06d0_JaffaCakes118.dll
Size

60KB
MD5

81c67cc331cb5c138183b9576f8a06d0
SHA1

84e18fa56dd7223cf81dd2a519a1e63b3fcbd7de
SHA256

a61f6a50be7c672b56fd4e32de7fafd94108a5bd8ba79664c62aeaaa507d7ce8
SHA512

ffefa82bf231710bc95b4f0e9a30c89da834261435573fc02e5bc8e93604bd4ab358303027f7206f9f88646f71e7eceea6176493a0b7c1bd27851c3ca184cb2d
SSDEEP

768:EBZX+Nzp4mjNx4Ss4l6iE18++uWdB9GBc81f+Iw5BLJUXNPgH9nmscYp:EPdc2inuWdB9r8YXPJY2BmscYp

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-1-5-21-3089151618-2647890268-2710988337-1000\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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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-1-5-21-3089151618-2647890268-2710988337-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
5084	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2660	rundll32.exe
2660	rundll32.exe
2660	rundll32.exe
2660	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 2660	4364	rundll32.exe	83
PID 4364 wrote to memory of 2660	4364	rundll32.exe	83
PID 4364 wrote to memory of 2660	4364	rundll32.exe	83
PID 2660 wrote to memory of 3272	2660	rundll32.exe	85
PID 2660 wrote to memory of 3272	2660	rundll32.exe	85
PID 2660 wrote to memory of 3272	2660	rundll32.exe	85
PID 3272 wrote to memory of 5084	3272	cmd.exe	89
PID 3272 wrote to memory of 5084	3272	cmd.exe	89
PID 3272 wrote to memory of 5084	3272	cmd.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\81c67cc331cb5c138183b9576f8a06d0_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\81c67cc331cb5c138183b9576f8a06d0_JaffaCakes118.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2660
- - 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:3272
  - - 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:5084

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

Download Submit
memory/2660-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

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