a6f33d935bd9c016b3d0914fd35d0985fbfb52018048a90e93f83984be09da9d

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2025, 14:50

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General

Target

msfilter.dll
Size

793KB
MD5

767e98d126b3d3890b18314dda3fad22
SHA1

b85d5c037e20b42fe243322ad9305044c3ed94ad
SHA256

00d5605208413b23d0cbf9456cc372d1bc50304c0bdaf5ee6539e3b9546b9a87
SHA512

353db1d4149d8bce0d492a1ac9b791155845a61dff4615c76a2e7d714545dbb0b96cfeae569011e7150ee020b077475d80dd9cd758707c5eaed896ed1c2d7d1a
SSDEEP

24576:fzA2cMYJKo2mG2sNL8tKSAS9GaTmRta648CkzeztwPOfHmi4E/hvhFwE:YMYkhNL8tpADk/hvhFwE

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3300	5920	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 5876 wrote to memory of 5920	5876	rundll32.exe	85
PID 5876 wrote to memory of 5920	5876	rundll32.exe	85
PID 5876 wrote to memory of 5920	5876	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msfilter.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msfilter.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5920 -s 740
    3⤵
    - Program crash
    PID:3300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5920 -ip 5920
1⤵
PID:4992

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

Replay Monitor

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Downloads

memory/5920-0-0x0000000074C60000-0x0000000075225000-memory.dmp

Filesize
5.8MB

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