575b3435debce773faf1403dc24e23d8133e8828ba57a0d680961a61bde1b435

Analysis

max time kernel
97s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2025, 09:23

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General

Target

apt/SysWOW64/AcSpecfc.dll
Size

451KB
MD5

e9ea1fd3fe480dceb9e35e95032aeef1
SHA1

9ada899144715427902a3d54bc5d870d932f6127
SHA256

c3706d4f86ac7157e76382c255c0aa84dbae391282113f48791a9ae3d0502c20
SHA512

7fdd91af46ee4983e21e5ac055a089d11b9309b323c60bea196378b1a76e56807d26759a78190c793050b7dd3b95de53c0778cc2d1a4530820415c3fd59d9aad
SSDEEP

6144:UmNgm0GiYRJCzk60h2rc3WPiLH92eFWHgg0uLUrEaJ+XBa0gTXqOxQdyKW+mu:2siwKcCiLd1WHggBAgaJrTHu

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4800	4564	WerFault.exe	86

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 3 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4564	4548	rundll32.exe	86
PID 4548 wrote to memory of 4564	4548	rundll32.exe	86
PID 4548 wrote to memory of 4564	4548	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\apt\SysWOW64\AcSpecfc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\apt\SysWOW64\AcSpecfc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 716
    3⤵
    - Program crash
    PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4564 -ip 4564
1⤵
PID:4652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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 v15

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