35155e8468c1287a21e03699a55325378001fa060ee79a1db8f5b02e82adc33d

Analysis

max time kernel
382s
max time network
1105s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
12-09-2024 15:58

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General

Target

libavutil-56.dll
Size

1.2MB
MD5

7cdeb2075bde3b7cd500e50e87d291f1
SHA1

7860db250f2cefb8e14cf8631a342d7cd489bba4
SHA256

ca3b5aa8a79edeed61d7526e44b68c6968f15e074a0f767cf6cbfc148dfbf8c4
SHA512

cc85f35454e8533e604da9296dfb74c27a6ed24b45b621fcaa308951a43dd83ff7a0f351f8930c9874920475ea13486010b01ee8712aee19cc9603e5da8b0eca
SSDEEP

24576:JeNaqLQN99oBo9BmGTwWW1Ih2QQ4vROb46yk/5WA/:JeNJC9ko9BmGTBw4NGsO

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	964	WerFault.exe	81

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 3588 wrote to memory of 964	3588	rundll32.exe	81
PID 3588 wrote to memory of 964	3588	rundll32.exe	81
PID 3588 wrote to memory of 964	3588	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\libavutil-56.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\libavutil-56.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 480
    3⤵
    - Program crash
    PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 964 -ip 964
1⤵
PID:2240

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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