5848f2d1bcf9bb96497ebb39d8fa9d6d49d22e666dd1d8bdd031f41c2c7b15e0

Analysis

max time kernel
148s
max time network
154s
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, 05:29

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General

Target

37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe
Size

244KB
MD5

37df1da563cd97cc876b0284b94a8573
SHA1

6117f5011fb84523a0565ce7f6d7b306d0c7b63f
SHA256

5848f2d1bcf9bb96497ebb39d8fa9d6d49d22e666dd1d8bdd031f41c2c7b15e0
SHA512

83a3fbefc51111c8f6e817f82bd9d91b35f42139369c1de666991707af6546170b4ac587676d3f0af64235afc22ee7a822ff3e8c2daf633647be4ff751f925c9
SSDEEP

6144:EbT1ttnumo/f696yj4tKTGsUEEJAl/jd0axo:EbT1ttnuajmKiE0AVCb

Score

7^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4292	uninstall.exe

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe
File opened for modification	\??\PhysicalDrive0	uninstall.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4292	uninstall.exe
4292	uninstall.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1084	37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe
4292	uninstall.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 4292	1084	37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe	84
PID 1084 wrote to memory of 4292	1084	37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe	84
PID 1084 wrote to memory of 4292	1084	37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\37df1da563cd97cc876b0284b94a8573_JaffaCakes118.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1084
- C:\Users\Admin\AppData\Local\Temp\uninstall.exe
  C:\Users\Admin\AppData\Local\Temp\uninstall.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\uninstall.exe

Filesize
244KB

MD5
37df1da563cd97cc876b0284b94a8573

SHA1
6117f5011fb84523a0565ce7f6d7b306d0c7b63f

SHA256
5848f2d1bcf9bb96497ebb39d8fa9d6d49d22e666dd1d8bdd031f41c2c7b15e0

SHA512
83a3fbefc51111c8f6e817f82bd9d91b35f42139369c1de666991707af6546170b4ac587676d3f0af64235afc22ee7a822ff3e8c2daf633647be4ff751f925c9

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