42d10c73c71be27683cf6e48e77607e9d15c732c83c9570cba2b18fb12a1ca01

Analysis

max time kernel
149s
platform
windows11-21h2_x64
resource
win11-20260911-en
resource tags

arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/10/2026, 15:39

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General

Target
$PLUGINSDIR/InstDrv.dll
Size 6KB
Sample261002-s3vqssvbpb
SHA256 42d10c73c71be27683cf6e48e77607e9d15c732c83c9570cba2b18fb12a1ca01
MD5 93bc55edd1bc37801c6d2d4d923c538b
SHA1 05abd413be1577d2aec4fbe97a99a9287add42a7
SHA512 046eb18bb5e1a56c7d0775e2421688789df66f2c8a290eeaf4e16e84eb23d253b1bd69be11ec498370d6e01c89721d9d1a658f3ca4717dbda09865342583e19b
SSDEEP 96:rVGgQBLFm/7OjtnhCqJrs+mBhd6krHKriqHNCucyjcwH4QDnlnaz5Q6i+lI3Jdr:rkgQBLsjetpMh6krqriqH2oDlazn
TLSH
T105D19475E7C25AF7D04A057D1E0B057616A2AC216778C22ECAA30AC519E1E5FFC3E323
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4976	1220	WerFault.exe	80

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 3572 wrote to memory of 1220	3572	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstDrv.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstDrv.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1220
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1220 -s 528
    3⤵
    - Program crash
    PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1220 -ip 1220
1⤵
PID:2592

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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