e791985263b2df4b00652a69f4d6ac925dd2e7a069b9cc30ccb6fc5c813ec44b | Triage

Analysis

max time kernel
140s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-02-2024 03:10

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General

Target

$PLUGINSDIR/System.dll
Size

10KB
MD5

4eff5fafd746f5decb93a44e3a3d570c
SHA1

a11aa7681b7e2df1c7f7492a127d332d1495ea8a
SHA256

cf61ddd15d63c25a12caee70f51ea736cfc02195c42e56ee01b33f689d3754c5
SHA512

cde82d2a1f28506e4c2264f6b82017a00af32f138ebcdbaf4cc58463870fa626f708aa57465294c5a6f096c886841e7b9112b85bf3ea2f1d8f2da816b51b2d72
SSDEEP

192:0OycJo/rJVCmIDNLU0dq5RD00lspbub76yL:6/QQ0d0RD0USq/6y

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
420	732	WerFault.exe	94

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 732	3472	rundll32.exe	94
PID 3472 wrote to memory of 732	3472	rundll32.exe	94
PID 3472 wrote to memory of 732	3472	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 732 -s 612
    3⤵
    - Program crash
    PID:420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 732 -ip 732
1⤵
PID:4548

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=1408 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:3220

Network

MITRE ATT&CK Matrix

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