a3c3f7a0014e41ff435db5b87ec92e60ada72a94fc401cb1ef3cf6daf71630e1 | Triage

Analysis

max time kernel
144s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 20:56

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General

Target

$PLUGINSDIR/InstallOptions.dll
Size

15KB
MD5

0a9fb96a7579b685ec36b17fc354e6a3
SHA1

355754104dd47d5fcf8918dee0dc2e2ee53390a6
SHA256

b34fb342f21d690aac024b6f48a597e78d15791ef480ac55159cd585d0f64af7
SHA512

67870206fa7f1e7df45c8c1bc2f51fb430f0a048a2bdb55a4a41525388ca3b50203784537f139169705a03db4bb13b591162a79a5d2df81a4d11fd849615c86b
SSDEEP

384:EFC43tPegZ3eBaRwCPOYY7nNYXCg/Yosa:EMTgZ3eBTCmrnNAo

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2636	2876	WerFault.exe	95

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2876	2320	rundll32.exe	95
PID 2320 wrote to memory of 2876	2320	rundll32.exe	95
PID 2320 wrote to memory of 2876	2320	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstallOptions.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstallOptions.dll,#1
  2⤵
  PID:2876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2876 -s 636
    3⤵
    - Program crash
    PID:2636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2876 -ip 2876
1⤵
PID:2012

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=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:2092

Network

MITRE ATT&CK Matrix

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