88b5bb996a4d40d82c59c76c889b7ae96dea8f79f2be608e0dbade499f208674 | Triage

Analysis

max time kernel
451s
max time network
455s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
25/01/2024, 14:13

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General

Target

$PLUGINSDIR/System.dll
Size

12KB
MD5

cff85c549d536f651d4fb8387f1976f2
SHA1

d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SHA256

8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
SHA512

531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88
SSDEEP

192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1832	2184	WerFault.exe	77

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 2184	4540	rundll32.exe	77
PID 4540 wrote to memory of 2184	4540	rundll32.exe	77
PID 4540 wrote to memory of 2184	4540	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 468
    3⤵
    - Program crash
    PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2184 -ip 2184
1⤵
PID:2560

Network

MITRE ATT&CK Matrix

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Downloads