6825298a40757be34f1c66a1c551822bf28caa5b1f399d730556012899e29076

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
03/05/2026, 16:48

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
6825298a40757be34f1c66a1c551822bf28caa5b1f399d730556012899e29076.dll
Size 2.1MB
Sample260503-va5ready2w
SHA256 6825298a40757be34f1c66a1c551822bf28caa5b1f399d730556012899e29076
MD5 3bf59676c87b5b6b01095bdc08be221f
SHA1 ca2f46e28a401dc5f96f191a29640b9ff44ba2d9
SHA512 9274ffaca7fb58eea78c38e0182f382c249f7ac0e86683e0e1e3e47efa793a50c5608b64e458be3132b3f861d28e34cb515879775251ba5d380b9fb2b6eda2b5
SSDEEP 24576:p4L76gxUf1b60oXSJ3lZqTOSyXBmd4jjonBs5ijNu2MNcxrfDQ8K5fFE4f3m:p9gxUf1bfrmdnnBs0kSD3gfq4+
TLSH
T102A58D13F15294F1E22D117512B1233E9979A6624E218A63FFD4DEF4AC322E2D79360F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

bootkit discovery 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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5964	872	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
872	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 872	2664	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6825298a40757be34f1c66a1c551822bf28caa5b1f399d730556012899e29076.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6825298a40757be34f1c66a1c551822bf28caa5b1f399d730556012899e29076.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 628
    3⤵
    - Program crash
    PID:5964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 872 -ip 872
1⤵
PID:4948

Network

MITRE ATT&CK Enterprise v16

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads