fbe07d1afd27ab353daa2afacc2de87d8f5ec69f64bbd9246f31ebfe1731de9b | Triage

Analysis

max time kernel
590s
max time network
607s
platform
windows10-2004_x64
resource
win10v2004-20240226-es
resource tags

arch:x64arch:x86image:win10v2004-20240226-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
22-04-2024 19:58

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General

Target

$PLUGINSDIR/System.dll
Size

12KB
MD5

8cf2ac271d7679b1d68eefc1ae0c5618
SHA1

7cc1caaa747ee16dc894a600a4256f64fa65a9b8
SHA256

6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
SHA512

ce828fb9ecd7655cc4c974f78f209d3326ba71ced60171a45a437fc3fff3bd0d69a0997adaca29265c7b5419bdea2b17f8cc8ceae1b8ce6b22b7ed9120bb5ad3
SSDEEP

192:BenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XB9IwL:B8+Qlt70Fj/lQRY/9VjjlL

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1244 3008 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3496 wrote to memory of 3008	3496	rundll32.exe	rundll32.exe
PID 3496 wrote to memory of 3008	3496	rundll32.exe	rundll32.exe
PID 3496 wrote to memory of 3008	3496	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:3496

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3008 -s 612
3⤵
- Program crash
PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3008 -ip 3008
1⤵
PID:2976

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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4292 --field-trial-handle=2000,i,11471789752336399729,10863385903208193579,262144 --variations-seed-version /prefetch:8
1⤵
PID:3528

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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5252 --field-trial-handle=2000,i,11471789752336399729,10863385903208193579,262144 --variations-seed-version /prefetch:8
1⤵
PID:1388

Network

MITRE ATT&CK Matrix

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