55aa5ea3f3aea2186f963209015fe71f37244df3149661746f1aaf7545fe95fd | Triage

Analysis

max time kernel
114s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31-03-2024 01:02

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General

Target

$PLUGINSDIR/System.dll
Size

12KB
MD5

4add245d4ba34b04f213409bfe504c07
SHA1

ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
SHA256

9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
SHA512

1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d
SSDEEP

192:VjHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZv0QPi:B/Qlt7wiij/lMRv/9V4bvr

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4072 3844 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 816 wrote to memory of 3844	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 3844	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 3844	816	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:816

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 612
3⤵
- Program crash
PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3844 -ip 3844
1⤵
PID:2840

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=3916 --field-trial-handle=2256,i,9172343514068348080,519219714517961765,262144 --variations-seed-version /prefetch:8
1⤵
PID:2180

Network

MITRE ATT&CK Matrix

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