a004419e6a0ed335cb9de5d6559659ad80020165a6be7eed02febcce47b8d200

Analysis

max time kernel
189s
max time network
170s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/12/2022, 01:46

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General

Target

a004419e6a0ed335cb9de5d6559659ad80020165a6be7eed02febcce47b8d200.dll
Size

218KB
MD5

bfaad77f5d283bdb8474906aae0ac040
SHA1

5c7f8f397bec57a28699bdfbff80fa488d79031e
SHA256

a004419e6a0ed335cb9de5d6559659ad80020165a6be7eed02febcce47b8d200
SHA512

32944c278f1b768f322701cb5941583dc7b5bd8fa18c279389920b5ed6b885f2d246946f1d7218925cb81cc5a5d445bab5f84c3f691161e3b37282ba2e814072
SSDEEP

6144:lvjnMqvBrF999/CVkvmHWJduudtjiGStqB5Mg9zLQ/+:lvjMqvL9qV0mHWGitji1tqB5MgNQW

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

T1067

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\52f57b	rundll32.exe
File created	C:\Windows\SysWOW64\ð--1099-125-103	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28
PID 896 wrote to memory of 964	896	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a004419e6a0ed335cb9de5d6559659ad80020165a6be7eed02febcce47b8d200.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a004419e6a0ed335cb9de5d6559659ad80020165a6be7eed02febcce47b8d200.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/964-55-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/964-56-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/964-57-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download