a403312a4ebe408327a8f0f82202190e333539107a139b238ab898723a7eedb2

Analysis

max time kernel
149s
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/libcelt-0110.dll
Size 371KB
Sample260522-daa4csfy2t
SHA256 a403312a4ebe408327a8f0f82202190e333539107a139b238ab898723a7eedb2
MD5 5d997ea4b6af129a3d554124edbacd8c
SHA1 67f92ae7050758516f93b4cd2c141558ecdaca14
SHA512 c7009c33d0ad766ef5ff1553bfcbcd4270859a8ea86aacb67f10a5f5c752ff6181e8db59adcc32703ad191a99a83ec934ea5d527b5c226625474e9a938ec9a03
SSDEEP 6144:+4mU0xPU6ZkwfUxtHGOIaoT8HLUvxzMmo6o6Q6Xq5ZQnIO:+7U0xPU6SxtHGTLTDxz+Z6QwqDO
TLSH
T110849C5AFBC68D57D82102368CD787260F39D26816539BDF2728F178BE537F269D2208
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2256	3328	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 1992 wrote to memory of 3328	1992	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\libs\libcelt-0110.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\libs\libcelt-0110.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 448
    3⤵
    - Program crash
    PID:2256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 3328 -ip 3328
1⤵
PID:4976

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/3328-0-0x0000000064CC0000-0x0000000064D1F000-memory.dmp

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