9340ede49c5a69e6830f3ed43e34f2c4c8b79c635b72eb197fc7916b2b79083b

Analysis

max time kernel
104s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2025, 23:53

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General

Target

$PLUGINSDIR/serlib.dll
Size

16KB
MD5

febff2c363c7f7664687eefe8253087e
SHA1

0b2c3e9a6ae860d1eb82f725a2d1a8037d68a893
SHA256

5c0d2c23203946c59306233a96da7db2911aa22bfd87c41abc12b4eee87c10ef
SHA512

06ba120ea474e00092faad360e68c734cdbbf54c52cb819d49f4f065c61d3f95a84171b62c4988058b636df885b32b293a5174e723e50b0415623a9ed9172268
SSDEEP

384:B0FdvbyMQpBiyWUsi1Z+EKTlMvD0Ac9khYLMkIX0+GsyvV6:q1bL2iyWUp+EKxiuV6

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3040	5800	WerFault.exe	85

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 2428 wrote to memory of 5800	2428	rundll32.exe	85
PID 2428 wrote to memory of 5800	2428	rundll32.exe	85
PID 2428 wrote to memory of 5800	2428	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\serlib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\serlib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5800 -s 768
    3⤵
    - Program crash
    PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5800 -ip 5800
1⤵
PID:5152

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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