7bd1b57851999fa49b034812da621cd4711df44b93f69539bb4a65045803e472

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 11:11

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General

Target
7bd1b57851999fa49b034812da621cd4711df44b93f69539bb4a65045803e472.dll
Size 1.9MB
Sample260820-naaspsyvcw
SHA256 7bd1b57851999fa49b034812da621cd4711df44b93f69539bb4a65045803e472
MD5 3b8d74d98d896d95ff923ccb256431cf
SHA1 b2b68e814990b1f3513b7b67d62ba93aa208d7a8
SHA512 622b985bf3bc6fa780f1c879963da6b7347bfb21180be6f2e73d0305be1608c3c6749f5b185e7484dff75c1d3b8d6641322385892d8077a77bb6b187e179111d
SSDEEP 49152:+yawG1T7GH+iSJgyl3Pq5jjyAQGJJbOiwk:k6kgyBPq9yXG
TLSH
T1F0958E213B41C036D69E1175993CAE6E446CAB640BB505E7A3E8AF7F2E304C36B35E17
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
2432	4716	WerFault.exe	87

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 WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 6084 wrote to memory of 4716	6084	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bd1b57851999fa49b034812da621cd4711df44b93f69539bb4a65045803e472.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:6084
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bd1b57851999fa49b034812da621cd4711df44b93f69539bb4a65045803e472.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  PID:4716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 736
    3⤵
    - Program crash
    PID:2432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4716 -ip 4716
1⤵
PID:124

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

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