6f3089e7b2ae92d2c4a1562e00481f4330042fa2209e43b964db7b3dfa41b6d7

Analysis

max time kernel
152s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 08:33

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General

Target

6f3089e7b2ae92d2c4a1562e00481f4330042fa2209e43b964db7b3dfa41b6d7.dll
Size

384KB
MD5

2275b6bd70ffbaefbc7626e2793d2b90
SHA1

1d6fdf895f49e97e10e3f21d98451908d5582248
SHA256

6f3089e7b2ae92d2c4a1562e00481f4330042fa2209e43b964db7b3dfa41b6d7
SHA512

1eb8ea7a4cdf9291619501aad2593dcc32cb5503dbdd974a00f8c0d6052aaa015c715752e8240b03d8aaca138fe2ecd078f4bee2e62c363f1a6c05e145368f63
SSDEEP

6144:uStBN2/13tjxkEWjlRwiprPa6Cm7lO6bcM9SH4TzlKcqWhJX6VD2:uStBN2JtFkEWpBlhCmhO6bcRuKGhJCD2

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\-139831-23	rundll32.exe
File created	C:\Windows\SysWOW64\0f238	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 3648	3404	rundll32.exe	39
PID 3404 wrote to memory of 3648	3404	rundll32.exe	39
PID 3404 wrote to memory of 3648	3404	rundll32.exe	39

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6f3089e7b2ae92d2c4a1562e00481f4330042fa2209e43b964db7b3dfa41b6d7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6f3089e7b2ae92d2c4a1562e00481f4330042fa2209e43b964db7b3dfa41b6d7.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:3648

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

Windows 7 deprecation

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