2d331e7d819dd74fd9e68cf3eed8d35d276aa5dd5958dcdeb1c823a5db238fa7

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09-01-2024 07:44

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General

Target

4dbf9cb44a88bd1cc97a794384b29e37.dll
Size

331KB
MD5

4dbf9cb44a88bd1cc97a794384b29e37
SHA1

0796ff42e67ea822a614e86801df8a1692f32697
SHA256

2d331e7d819dd74fd9e68cf3eed8d35d276aa5dd5958dcdeb1c823a5db238fa7
SHA512

d04298e06a515339d4a8a5cc972aad03ae93c55440048a500e49eec86e1fd924e325746578cf7a9a4502014c98cdaec27e883da6d2c857c5210a4dec95740559
SSDEEP

6144:WYqIiKtwflY1+HXqnzgE/HqhENXs2dy92NgvpnoJtEh/F:WYlaflYs3aXPy2anwWht

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

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2912	868	WerFault.exe	14

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 2248 wrote to memory of 868	2248	rundll32.exe	14
PID 868 wrote to memory of 2912	868	rundll32.exe	15
PID 868 wrote to memory of 2912	868	rundll32.exe	15
PID 868 wrote to memory of 2912	868	rundll32.exe	15
PID 868 wrote to memory of 2912	868	rundll32.exe	15

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4dbf9cb44a88bd1cc97a794384b29e37.dll,#1
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 280
  2⤵
  - Program crash
  PID:2912

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4dbf9cb44a88bd1cc97a794384b29e37.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2248

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

memory/868-2-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-5-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-8-0x0000000000870000-0x0000000000871000-memory.dmp

Filesize
4KB

Download
memory/868-7-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/868-6-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-4-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/868-3-0x00000000002D0000-0x000000000030A000-memory.dmp

Filesize
232KB

Download
memory/868-1-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-0-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-9-0x0000000000740000-0x00000000007C2000-memory.dmp

Filesize
520KB

Download
memory/868-10-0x00000000002D0000-0x000000000030A000-memory.dmp

Filesize
232KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads