a7a04842ca3e817e5ae28cf389f590ba2a4f76c63e25249419bad63277b7312f | Triage

Analysis

max time kernel
142s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 14:17

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

fc3772787eb239ef4d0399680dcc4343
SHA1

db2fa99ec967178cd8057a14a428a8439a961a73
SHA256

9b93c61c9d63ef8ec80892cc0e4a0877966dca9b0c3eb85555cebd2ddf4d6eed
SHA512

79e491ca4591a5da70116114b7fbb66ee15a0532386035e980c9dfe7afb59b1f9d9c758891e25bfb45c36b07afd3e171bac37a86c887387ef0e80b1eaf296c89
SSDEEP

192:eS24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35OloSl:S8QIl975eXqlWBrz7YLOlo

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4008 2388 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1448 wrote to memory of 2388	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 2388	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 2388	1448	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:1448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:2388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 612
    3⤵
    - Program crash
    PID:4008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2388 -ip 2388
1⤵
PID:3852

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=1340 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:3316

Network

MITRE ATT&CK Matrix

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