42ca73a2f64b86c9e59cc795eaf28450bdfd1149a35b052e2a8baf1b47e82204 | Triage

Analysis

max time kernel
124s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14-05-2024 14:05

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

0063d48afe5a0cdc02833145667b6641
SHA1

e7eb614805d183ecb1127c62decb1a6be1b4f7a8
SHA256

ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
SHA512

71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0
SSDEEP

192:qPtkiQJr7V9r3HcU17S8g1w5xzWxy6j2V7i77blbTc4U:F7VpNo8gmOyRsVc4

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1644 4644 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 444 wrote to memory of 4644	444	rundll32.exe	rundll32.exe
PID 444 wrote to memory of 4644	444	rundll32.exe	rundll32.exe
PID 444 wrote to memory of 4644	444	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:444

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 612
3⤵
- Program crash
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4644 -ip 4644
1⤵
PID:1756

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=3688,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=2668 /prefetch:8
1⤵
PID:4724

Network

MITRE ATT&CK Matrix

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