bb6904002d51da7d6841004dc294ab2ab5af655bfa5c67dbeb5d416b02b92168

Analysis

max time kernel
91s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 16:40

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General

Target

bb6904002d51da7d6841004dc294ab2ab5af655bfa5c67dbeb5d416b02b92168.dll
Size

14KB
MD5

0bff66829e9c5833ef9d21a94883f7ea
SHA1

bbc549d34ffa1eadc298e3ee2dfb1154e478f543
SHA256

bb6904002d51da7d6841004dc294ab2ab5af655bfa5c67dbeb5d416b02b92168
SHA512

373b01734800519e7ad7649a27320bb6c792caf6ec4bb5800a4614636ed64e31013c0eea8d1be62568259aa62c5ecf5a50c42c3ade42c0e0da0deeb02eb0fc63
SSDEEP

192:jtaQvwX0B1xDYBaBoxk4oyO6XBrt/M6XQ5bNvWgm1BZhi:pacC21aBaOO1W9FM6CbNvW/y

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4448	5068	WerFault.exe	82

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 5068	2340	rundll32.exe	82
PID 2340 wrote to memory of 5068	2340	rundll32.exe	82
PID 2340 wrote to memory of 5068	2340	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6904002d51da7d6841004dc294ab2ab5af655bfa5c67dbeb5d416b02b92168.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6904002d51da7d6841004dc294ab2ab5af655bfa5c67dbeb5d416b02b92168.dll,#1
  2⤵
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  PID:5068
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5068 -s 716
    3⤵
    - Program crash
    PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5068 -ip 5068
1⤵
PID:4608

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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