e4fd67f9e98b948adece9fd347e6c1d16b5e1d1e1bad876a95cb6b69678b7f3a

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 04:42

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General

Target

8b6c92b72a69a7510356a09686bdc452.dll
Size

212KB
MD5

8b6c92b72a69a7510356a09686bdc452
SHA1

b2aaadfaf8af6c1423e0f7c3f00f4df98e3770bb
SHA256

e4fd67f9e98b948adece9fd347e6c1d16b5e1d1e1bad876a95cb6b69678b7f3a
SHA512

32b052a69c8a00b8473f2f89186c36c0be9091f164f227cbefb579f9b5a1fc4815e7f51cf98cf7182feb35221cd0ea6b1616270ee63b444871921ca379f79eee
SSDEEP

6144:OUWHm5OkHwUDhjEG98hLz24Uk+8hhkxc:OUWEHVDhoThf24W8Tki

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\-27-72356	rundll32.exe
File created	C:\Windows\SysWOW64\16731c	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28
PID 1940 wrote to memory of 2932	1940	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b6c92b72a69a7510356a09686bdc452.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b6c92b72a69a7510356a09686bdc452.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:2932

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

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Downloads

memory/2932-0-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

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memory/2932-1-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

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memory/2932-2-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

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memory/2932-5-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

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memory/2932-6-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

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memory/2932-7-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads