0b4a3dd50fed1972cb41fa18b79d8a51ae8b15ae8d31e4facd926a86bfa6926f | Triage

Analysis

max time kernel
139s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:26

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

b0c77267f13b2f87c084fd86ef51ccfc
SHA1

f7543f9e9b4f04386dfbf33c38cbed1bf205afb3
SHA256

a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
SHA512

f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e
SSDEEP

192:4PtkiQJr7jHYT87RfwXQ6YSYtOuVDi7IsFW14Ll8CO:H78TQIgGCDp14LGC

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3876 1656 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4656 wrote to memory of 1656	4656	rundll32.exe	rundll32.exe
PID 4656 wrote to memory of 1656	4656	rundll32.exe	rundll32.exe
PID 4656 wrote to memory of 1656	4656	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:1656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 612
    3⤵
    - Program crash
    PID:3876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1656 -ip 1656
1⤵
PID:1036

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:1256

Network

MITRE ATT&CK Matrix

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