543d70796dd7fb1c22554d5bd02e4ea41361fb229318c4895699a7bb4a52db8a

Analysis

max time kernel
158s
max time network
63s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-10-2022 22:41

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General

Target

543d70796dd7fb1c22554d5bd02e4ea41361fb229318c4895699a7bb4a52db8a.dll
Size

736KB
MD5

8418eb6d6b64d32de3aea313c62b6145
SHA1

5081ef3fe41e017088ff219b3101dece622df17f
SHA256

543d70796dd7fb1c22554d5bd02e4ea41361fb229318c4895699a7bb4a52db8a
SHA512

184672a09b78ed16ddf70722be12b87a35dcf8c19c7fa8075a374092b36209dded3b737098f3cb877cc089fd37693040b47d4e0395ff8953adb604ed474e48ab
SSDEEP

12288:BVHQ/rzA6bfiImL3RWsNp1qPCxYjvNd7KlmEtE/x:BVHQrzPjU3oyzMCxcvNdOmEtC

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\ õ--311889-96	rundll32.exe
File created	C:\Windows\SysWOW64\0f6	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20
PID 1896 wrote to memory of 2012	1896	rundll32.exe	20

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\543d70796dd7fb1c22554d5bd02e4ea41361fb229318c4895699a7bb4a52db8a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\543d70796dd7fb1c22554d5bd02e4ea41361fb229318c4895699a7bb4a52db8a.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:2012

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/2012-54-0x0000000000000000-mapping.dmp

Download
memory/2012-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/2012-56-0x0000000010000000-0x00000000100A7000-memory.dmp

Filesize
668KB

Download
memory/2012-57-0x0000000010000000-0x00000000100A7000-memory.dmp

Filesize
668KB

Download