3ffdb350b61ab920bbf78756ecb47b31bd39fc2ab33b64e3f834dcaf997c40db

Analysis

max time kernel
149s
max time network
138s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
22/05/2026, 02:47

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General

Target
libs/libatrac9.dll
Size 134KB
Sample260522-daa4csfy2t
SHA256 3ffdb350b61ab920bbf78756ecb47b31bd39fc2ab33b64e3f834dcaf997c40db
MD5 d800d6f02e2e865451aa40a6600101ee
SHA1 79abbd1c0a10076c8359ccc513202dded34a439f
SHA512 35e6508529a1eb9d56eb750123a2f03e63f457583cde992934cc4a504a95c059dc84bbc1218dc847997a6fb7df43c26ef073c2ebeb6b073bb37eb504b9f1db61
SSDEEP 1536:xum/V0jgsK/YcZoljKTNCn+ZLpXKTwTqQ0VC4UsWWcd94TTs5X21muvtmgMbFu/l:dyj1KCCCkLp+3u9CS2UIAg0FubRNZ
TLSH
T16AD38C00F4D3C9B6D5BE1A340475A6A51B3E2870DB614EBB3F942A3D4EB42C05E76E72
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5028	1016	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 4940 wrote to memory of 1016	4940	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\libs\libatrac9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\libs\libatrac9.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1016
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 448
    3⤵
    - Program crash
    PID:5028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1016 -ip 1016
1⤵
PID:3916

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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