91046a66176dee00005b82147720807382183951e331436558521585be338072 | Triage

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2024, 07:41

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

$PLUGINSDIR/Base64.dll
Size

32KB
MD5

fb6ffa30b708e9413d71a2c95558d0f1
SHA1

a4a67a7b6c53e47f9a741e06c701e03382dc548f
SHA256

3ae1c3fbf851e0de9865191b00b5fc26be32eb4f2ccb81b47e1488c2805402ae
SHA512

b1e4e9e263add6c6d9f7309d739375725f7c4afd645caebea903f7b8963c0ac8d2728dee3edd999f8496b100ba8bd5fd7e5c3c4c17ca0bbcd24923c0cb270415
SSDEEP

384:zFE2o6I2uTFKX342X5xzumltM//yaGPzUo7o5F8:zFES1uTE4W7zwmPzt7o5F8

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2856	3948	WerFault.exe	90

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3948	4468	rundll32.exe	90
PID 4468 wrote to memory of 3948	4468	rundll32.exe	90
PID 4468 wrote to memory of 3948	4468	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
  2⤵
  PID:3948
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 600
    3⤵
    - Program crash
    PID:2856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3948 -ip 3948
1⤵
PID:2508

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 --field-trial-handle=3960,i,8998666007764333392,14724298544432336038,262144 --variations-seed-version --mojo-platform-channel-handle=4452 /prefetch:8
1⤵
PID:452

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads