0f3bfdf1fccfa3d80af6edb597a5071099825be60264c230a0da29ca49dfd31a | Triage

Analysis

max time kernel
139s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 15:18

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General

Target

$PLUGINSDIR/nsExec.dll
Size

6KB
MD5

50ba20cad29399e2db9fa75a1324bd1d
SHA1

3850634bb15a112623222972ef554c8d1eca16f4
SHA256

e7b145abc7c519e6bd91dc06b7b83d1e73735ac1ac37d30a7889840a6eed38fc
SHA512

893e053fcb0a2d3742e2b13b869941a3a485b2bda3a92567f84190cb1be170b67d20cc71c6a2cb92f4202140c8afd9c40a358496947d709e0c4b68d43a368754
SSDEEP

96:17GUxNkO6GR0t9GKKr1Zd8NHYVVHp4dEeY3kRnHdMqqyVgNT3e:5XhHR0aTQN4gRHdMqJVgNa

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4220 1556 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2136 wrote to memory of 1556	2136	rundll32.exe	rundll32.exe
PID 2136 wrote to memory of 1556	2136	rundll32.exe	rundll32.exe
PID 2136 wrote to memory of 1556	2136	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
2⤵
PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 612
3⤵
- Program crash
PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1556 -ip 1556
1⤵
PID:1216

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=3888,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8
1⤵
PID:3728

Network

MITRE ATT&CK Matrix

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