efbf04cf44e44570214b2c1e1f3d97b05c15d1d0204886a4443e06b5d520642a

Analysis

max time kernel
149s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
27/04/2026, 04:28

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General

Target
efbf04cf44e44570214b2c1e1f3d97b05c15d1d0204886a4443e06b5d520642a.dll
Size 2.3MB
Sample260427-e3z4maew5j
SHA256 efbf04cf44e44570214b2c1e1f3d97b05c15d1d0204886a4443e06b5d520642a
MD5 10d9f4bc68e03dd86c5dc7650629381a
SHA1 5c7e9ea53b4088a8f4b15e5486cc1dc290e0aba1
SHA512 83288616faef1b620fdcabb82213442d832690fb8dd7678d061df3b371d215bb7b3ed5b9439cdba7d37618555c55b3e0455a3ea1f4c77787f534207aab070437
SSDEEP 49152:phX1d7/2708CSY5HPYej6RndCFMhocb3O0aF5hzp:XXL7/27rC1nIhoe3E5T
TLSH
T1FFB58D2136E84077E4F242B1CBE9A916A5A8FC3507308CDB43B1564E7A729C25977F2F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1744	328	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 4884 wrote to memory of 328	4884	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\efbf04cf44e44570214b2c1e1f3d97b05c15d1d0204886a4443e06b5d520642a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\efbf04cf44e44570214b2c1e1f3d97b05c15d1d0204886a4443e06b5d520642a.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 328 -s 416
    3⤵
    - Program crash
    PID:1744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 328 -ip 328
1⤵
PID:1080

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

Replay Monitor

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Downloads

memory/328-0-0x00000000015C0000-0x000000000167B000-memory.dmp

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