621b28440d4dc9ea07cf3a81589b36edc971232d40a03569cfef5f4e2293d321 | Triage

Analysis

max time kernel
135s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/01/2024, 06:15

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General

Target

$PLUGINSDIR/UserInfo.dll
Size

4KB
MD5

c7ce0e47c83525983fd2c4c9566b4aad
SHA1

38b7ad7bb32ffae35540fce373b8a671878dc54e
SHA256

6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae
SHA512

ee9f23ea5210f418d4c559628bbfb3a0f892440bcd5dc4c1901cb8e510078e4481ea8353b262795076a19055e70b88e08fee5fb7e8f35a6f49022096408df20e

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1864	2072	WerFault.exe	62

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 2072	4956	rundll32.exe	62
PID 4956 wrote to memory of 2072	4956	rundll32.exe	62
PID 4956 wrote to memory of 2072	4956	rundll32.exe	62

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
  2⤵
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 612
    3⤵
    - Program crash
    PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2072 -ip 2072
1⤵
PID:3744

Network

MITRE ATT&CK Matrix

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