898ca7aa129126a615282db699c2c3545f05df4c5660ee16bd9b42913ff5818f | Triage

Analysis

max time kernel
139s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 12:16

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General

Target

$PLUGINSDIR/npHelper.dll
Size

333KB
MD5

b4265a7ee9968e9c59aa7ff90ce6198b
SHA1

8a3447319d888fecfc29f8a57c06bd2839ca0f6e
SHA256

224f9121cdfd4dfc675d2648e6a00d5ba78be1428e740fb7f1ed0f0865d4abec
SHA512

2be0ee3dfbff2a1a555a0faa1bbe5ed9c8b8d17be754e10371560277716a53895a6fc41629c8250d5846691d84eb5fb8318b5ff0b1e3e06f5272a7a5a4e504c9
SSDEEP

6144:rghB4p062SsPDOF0HDF1PldFkElDJhhAOBlXIwzYeO4:rgzwYDqmHDz1XhhflXTzYe9

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1572	2460	WerFault.exe	90

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 2460	1108	rundll32.exe	90
PID 1108 wrote to memory of 2460	1108	rundll32.exe	90
PID 1108 wrote to memory of 2460	1108	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\npHelper.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\npHelper.dll,#1
  2⤵
  PID:2460
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 620
    3⤵
    - Program crash
    PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2460 -ip 2460
1⤵
PID:3320

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 --field-trial-handle=3856,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4364 /prefetch:8
1⤵
PID:3616

Network

MITRE ATT&CK Matrix

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