70bd9ab0f4288c757924bef661599c09e6d8997302df891c4663fd89a9429d45

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04-02-2024 00:33

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General

Target

8dc45607497ec62a5f56e5f2c530738d.dll
Size

80KB
MD5

8dc45607497ec62a5f56e5f2c530738d
SHA1

7e362c61d2335ce74a2b44e93c2ec039e559b8c0
SHA256

70bd9ab0f4288c757924bef661599c09e6d8997302df891c4663fd89a9429d45
SHA512

e684980b68b64ece2d746da8303a2136d3d2ef052ddb31c66a04a8dfb68d09e3041083f06a8a505cf625d939b409df51a314eeb67880f1a7438dc5628c8356d4
SSDEEP

1536:ymFjlKsUIg71ePAeTVu3f0LbqSJcmCifFmxG5hmKYFqoY:Zjl+Ig5ePDTVA0L2SJcmCiQx2hr2qoY

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2088	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28
PID 2932 wrote to memory of 2088	2932	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8dc45607497ec62a5f56e5f2c530738d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8dc45607497ec62a5f56e5f2c530738d.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:2088

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2088-0-0x0000000000100000-0x0000000000109000-memory.dmp

Filesize
36KB

Download
memory/2088-3-0x0000000000100000-0x0000000000109000-memory.dmp

Filesize
36KB

Download