e44aaebe17608f9b5c07bee8ddd43842002a0456c56af4bf9c5f02706050f85c

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/01/2024, 12:04

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General

Target

58dff4c0040118e6585fa62902f64508.dll
Size

88KB
MD5

58dff4c0040118e6585fa62902f64508
SHA1

1b6437327a85914bd8c9900bab14e1e8a372db21
SHA256

e44aaebe17608f9b5c07bee8ddd43842002a0456c56af4bf9c5f02706050f85c
SHA512

b629db0d4f42fba090c815e368187e6d30a8b6b4252c80417b437c4fb1a596aef8ce3fae73d52722fcf91b894fa57adf556a09642d086f40b6540d46a317fb6f
SSDEEP

1536:luQUGyTL8eFJ11kL1q+PSsMwTHgsFl/h0m6PnC0la:YL8WdkrtXHXFn0m6/3a

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1584	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28
PID 1780 wrote to memory of 1584	1780	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58dff4c0040118e6585fa62902f64508.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\58dff4c0040118e6585fa62902f64508.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:1584

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1584-0-0x0000000000120000-0x000000000012B000-memory.dmp

Filesize
44KB

Download
memory/1584-1-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download