43531d3b8de7c9a3ad040bd28df53cb27d6c3211d339b98f5262f0d2eb55526b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 07:40

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General

Target

6ac5a96fa2677fb7f602d1269ebba484_JaffaCakes118.dll
Size

60KB
MD5

6ac5a96fa2677fb7f602d1269ebba484
SHA1

7a8d0123ea6a9adbba42c6f007c8e4a4a761b881
SHA256

43531d3b8de7c9a3ad040bd28df53cb27d6c3211d339b98f5262f0d2eb55526b
SHA512

fdcae3a1705950d6e0be4fbc1b24d761d4ac4e2f90774b58fb5670d5cfd45439ed281d4667030e66aa13d41c3888b4f8235001b7bd0cbf43e5abe903367eb3e6
SSDEEP

1536:LJiYU3BupCdtWMrd4IJfzc5TOtnVxhxMU:LJil3BaCdtWxSLMTOtVxgU

Score

8^/10

discovery persistence privilege_escalation vmprotect

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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	cmd.exe

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4828-0-0x0000000010000000-0x000000001000F000-memory.dmp	vmprotect

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-1-5-21-1705699165-553239100-4129523827-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4500	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4828	rundll32.exe
4828	rundll32.exe
4828	rundll32.exe
4828	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 4828	1972	rundll32.exe	84
PID 1972 wrote to memory of 4828	1972	rundll32.exe	84
PID 1972 wrote to memory of 4828	1972	rundll32.exe	84
PID 4828 wrote to memory of 2124	4828	rundll32.exe	85
PID 4828 wrote to memory of 2124	4828	rundll32.exe	85
PID 4828 wrote to memory of 2124	4828	rundll32.exe	85
PID 2124 wrote to memory of 4500	2124	cmd.exe	87
PID 2124 wrote to memory of 4500	2124	cmd.exe	87
PID 2124 wrote to memory of 4500	2124	cmd.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6ac5a96fa2677fb7f602d1269ebba484_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6ac5a96fa2677fb7f602d1269ebba484_JaffaCakes118.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4828
- - 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:2124
  - - 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:4500

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/4828-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

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