f57db99dc4f275e80dfbec38e0e02bc0e1203077692ef23205ee435bd94cf5e2 | Triage

Analysis

max time kernel
141s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 19:21

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General

Target

$PLUGINSDIR/nsExec.dll
Size

6KB
MD5

c129bc26a26be6f5816a03520bb37833
SHA1

18100042155f948301701744b131c516bf26ddb8
SHA256

d3694fa0503158194129d113fcc1c83177ff5a5f93d898ce0bcfe9ce12f06bf4
SHA512

dbe79859c41e00a6e951cee889e7f0de29a712792fb531662285a2d6e384884518c7d5d983894c185b3d31d81213d2477cf4576b0114d352b759fe07a1704e63
SSDEEP

96:y7GUaYNwCLuGFctpiKFlYJ8hH4RVHpwdEeY3kRlDr6dMqqyVgN738:8ygp3FcHi0xhYMR8dMqJVgN

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3640 956 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4888 wrote to memory of 956	4888	rundll32.exe	rundll32.exe
PID 4888 wrote to memory of 956	4888	rundll32.exe	rundll32.exe
PID 4888 wrote to memory of 956	4888	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:4888
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
  2⤵
  PID:956
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 956 -s 612
    3⤵
    - Program crash
    PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 956 -ip 956
1⤵
PID:2752

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=4112 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:3320

Network

MITRE ATT&CK Matrix

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