fbcbfa3bae2c721a8923ef296e7f7140d3035a2cf711ab3df4d948eba6226446

Analysis

max time kernel
149s
max time network
105s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
09/10/2025, 17:25

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General

Target
$PLUGINSDIR/System.dll
Size 12KB
Sample251009-vzmbcsslw5
SHA256 b7823a15e7b1866ba3d77248f750b66505859d264cfc39d8c8c5e812f8ae4a81
MD5 a1da6788aeaf78ca4ae1dece8019e49d
SHA1 d770155e6e9aa69223be198c44a8da26a1756d89
SHA512 eada9c1528563ddfe3d4d8ed5dbc52b85a9190765535b68da90e6d623288bf0090adac5118e1ed6e3cb3e0abb9af025d3a2a73121413a4471a90fd04bc861e18
SSDEEP 192:uenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBUIwL:u8+Qlt70Fj/lQRY/9Vjj+L
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4828	3268	WerFault.exe	78

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 3944 wrote to memory of 3268	3944	rundll32.exe	78
PID 3944 wrote to memory of 3268	3944	rundll32.exe	78
PID 3944 wrote to memory of 3268	3944	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3268
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 460
    3⤵
    - Program crash
    PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3268 -ip 3268
1⤵
PID:5252

Network

MITRE ATT&CK Enterprise v16

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 v16

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