840319291a9accaec71ad66644a813f372a4f03948f3fcd60859f0923c367c2f

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 16:54

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General

Target

fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
Size

27KB
MD5

fcbd4404a140866f50c98b8564572545
SHA1

d4eea9ca019e36ce206bb6f51386cb226b45534f
SHA256

840319291a9accaec71ad66644a813f372a4f03948f3fcd60859f0923c367c2f
SHA512

dfe2ad4982f8c76cf2d8d8051970b1fd1a0d32611d77189fb493fa4dfba8180036445b0362701e832f253c1678b374fa83a53b75aa4fad8caff636ae13e7c3be
SSDEEP

384:iXIGP+MQ9aBfDnnWI1k/9lM5YSf0Z9xFMJ5irw6+Tdkn3ouoQXeOBfWB0n6nqWj:nGP+3aBLnFk/XM5yZrCiSTdkuOBfuqW

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\vkokfg\Parameters\ServiceDll = "%SystemRoot%\\System32\\vkokfg.dll"	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2508	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2504	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
2508	svchost.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vkokfg.dll	fcbd4404a140866f50c98b8564572545_JaffaCakes118.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	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
2504	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
2504	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 348 wrote to memory of 2504	348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe	30
PID 348 wrote to memory of 2504	348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe	30
PID 348 wrote to memory of 2504	348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe	30
PID 348 wrote to memory of 2504	348	fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:348
- C:\Users\Admin\AppData\Local\Temp\fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fcbd4404a140866f50c98b8564572545_JaffaCakes118.exe" TWO
  2⤵
  - Server Software Component: Terminal Services DLL
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2504

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k vkokfg
1⤵
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

\Windows\SysWOW64\vkokfg.dll

Filesize
20KB

MD5
a3ddec5d4e63d6f9f621479553714045

SHA1
97e2f45729c8383cec1e7d4954442106f1321763

SHA256
c2b656e3939e4757974800c941216fd00d5803bb201f044425299b35dc80d321

SHA512
426bfef949d71738d045be544bdddb1644fe6636be80968ceda7f3961a6ecaf26a431048da3f55012b5ae7d01771eeffc17cd4b005be315f26fa1d34e58fb514

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