72fd51a857e810cf54291ab1aceab06565cc4a4da8af3eaff1efe634d153db00 | Triage

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 07:22

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General

Target

avcodec-58.dll
Size

5.4MB
MD5

f63bb2c0ec4e25a2a36c676e6a61e46c
SHA1

f2ec51ae3440cb5b86d4f73a4c7c466ea5b25db2
SHA256

d3a72ea93dc6267b25b534b59e46aae4fc9f4d1a72fb46f3b9ec9f83052805c3
SHA512

a3712fbacaba2259e1fb5d6fc7917ff7bf8b00d28837206c5108b9086564b1b305f11da4f50c30471f64f3d12236eec5340ea4fa652271f446605a50f155e380
SSDEEP

98304:01e1E1gKlO+cPInIJchD6wi8x8UnK9flKCWDFfo/g79SEF:2e1E1gKlqJch2AKn/g79S

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3004	2900	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2872 wrote to memory of 2900	2872	rundll32.exe	28
PID 2900 wrote to memory of 3004	2900	rundll32.exe	29
PID 2900 wrote to memory of 3004	2900	rundll32.exe	29
PID 2900 wrote to memory of 3004	2900	rundll32.exe	29
PID 2900 wrote to memory of 3004	2900	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-58.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-58.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 248
    3⤵
    - Program crash
    PID:3004

Network

MITRE ATT&CK Matrix

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