4eb85a5532b98cbc4a6db1697cf46b9e2b7e28e89d6bbfc137b36c0736cd80e2 | Triage

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11-04-2022 12:46

220411-pzzc2aabg7 10

11-04-2022 08:06

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11-04-2022 08:02

220411-jxdewsfbe7 1

10-04-2022 10:22

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Analysis

max time kernel
506s
max time network
508s
platform
windows10-2004_x64
resource
win10v2004-20220331-en
submitted
11-04-2022 12:46

Sharing

Report Analysis Logs

General

Target

MFMediaEngine.dll
Size

990KB
MD5

e0ecf5e7d2a4656457fabeee2918ef38
SHA1

ca05587d9bd333a62735705ba6b3f919ea7d6d17
SHA256

4eb85a5532b98cbc4a6db1697cf46b9e2b7e28e89d6bbfc137b36c0736cd80e2
SHA512

f2dc88e57feab0dcc8ad36dd313413d4735350343573f6c8721b5cae48a8ceff393dfd9bcf327d9eb4114347ad704de6dbcfffc42aa53876ba0b017011ac9ddc

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2092 4348 WerFault.exe regsvr32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exe

pid process

4348 regsvr32.exe
4348 regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 4868 wrote to memory of 4348	4868	regsvr32.exe	regsvr32.exe
PID 4868 wrote to memory of 4348	4868	regsvr32.exe	regsvr32.exe
PID 4868 wrote to memory of 4348	4868	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\MFMediaEngine.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4868
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\MFMediaEngine.dll
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4348
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 1240
    3⤵
    - Program crash
    PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4348 -ip 4348
1⤵
PID:4320

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4348-124-0x0000000000000000-mapping.dmp

Download