b3b5a7be0903155be5cc3b443e40223897802c43c9e5fa0b3e3bda3ee182be39

Analysis

max time kernel
1s
max time network
2s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 08:41

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Reason

Machine shutdown

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General

Target

1aa4726e4429d5e566548770dfa6a08f_JaffaCakes118.dll
Size

2KB
MD5

1aa4726e4429d5e566548770dfa6a08f
SHA1

537c79aeb1001ebce122f8849fc4bcd7563a09bd
SHA256

b3b5a7be0903155be5cc3b443e40223897802c43c9e5fa0b3e3bda3ee182be39
SHA512

28f815395c20f55270b0dc49147fda75ca50defa9cf4dca066626ac5f06798124dc3e7db36e06859eabf5a33bc67187c938457668ca7e38a6ec716952cf7372c

Score

6^/10

bootkit persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeShutdownPrivilege 2656 rundll32.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

description	pid	process
Token: SeShutdownPrivilege	2656	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 940 wrote to memory of 2656	940	rundll32.exe	rundll32.exe
PID 940 wrote to memory of 2656	940	rundll32.exe	rundll32.exe
PID 940 wrote to memory of 2656	940	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1aa4726e4429d5e566548770dfa6a08f_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:940

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1aa4726e4429d5e566548770dfa6a08f_JaffaCakes118.dll,#1
2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
PID:2656

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2656-0-0x00000000003C0000-0x00000000003C3000-memory.dmp

Filesize
12KB

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memory/2656-1-0x00000000003C1000-0x00000000003C2000-memory.dmp

Filesize
4KB

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