4b27de8a7f73d469420c292dc63c895c075dfb3d6d641781eadeac3646e5f704 | Triage

Analysis

max time kernel
136s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-05-2024 18:15

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General

Target

$PLUGINSDIR/WndProc.dll
Size

3KB
MD5

f0cb331dd4bd92a6ebce45e7cd1cf5ef
SHA1

b66ea0c10b08750295f2dc7c170b370402393214
SHA256

e7b3115fa2ce4a8fa09beeefa4fb634a474197f38a2854ce9be60d0a26016458
SHA512

7c33418f39b91ae0d4cc8b560f516bac293593eef539832815028878c2058bf1691c2d767a039cf312989839071f2f6f0b6d9d59835acdfff6b448bf1ffea271

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3908 2668 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2592 wrote to memory of 2668	2592	rundll32.exe	rundll32.exe
PID 2592 wrote to memory of 2668	2592	rundll32.exe	rundll32.exe
PID 2592 wrote to memory of 2668	2592	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WndProc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2592

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WndProc.dll,#1
2⤵
PID:2668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 600
3⤵
- Program crash
PID:3908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2668 -ip 2668
1⤵
PID:4180

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=4396 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
1⤵
PID:5024

Network

MITRE ATT&CK Matrix

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