0d8e2f68ce537be331fb8776d6d2e118da87bb31fd7f266392d382f92dc5193d | Triage

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 01:05

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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

Processes:

WerFault.exe

pid pid_target process target process

2932 2488 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2524 wrote to memory of 2488	2524	rundll32.exe	rundll32.exe
PID 2524 wrote to memory of 2488	2524	rundll32.exe	rundll32.exe
PID 2524 wrote to memory of 2488	2524	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-58.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-58.dll,#1
2⤵
PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 712
3⤵
- Program crash
PID:2932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2488 -ip 2488
1⤵
PID:3284

Network

MITRE ATT&CK Matrix

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