21be0a068d7d1b57578bfb2ed850b3f3b1cfe4a4c47981ead95abdb8c20278fe | Triage

Analysis

max time kernel
91s
max time network
147s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
24-04-2024 23:22

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General

Target

$PLUGINSDIR/UAC.dll
Size

14KB
MD5

adb29e6b186daa765dc750128649b63d
SHA1

160cbdc4cb0ac2c142d361df138c537aa7e708c9
SHA256

2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
SHA512

b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada
SSDEEP

192:DiF6v2imI36Op/tGZGfWxdyWHD0I53vLl7WVl8e04IpDlPjs:DGVY6ClGoWxXH75T1WVl83lLs

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4100	4472	WerFault.exe	80

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 4472	2400	rundll32.exe	80
PID 2400 wrote to memory of 4472	2400	rundll32.exe	80
PID 2400 wrote to memory of 4472	2400	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UAC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UAC.dll,#1
  2⤵
  PID:4472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 540
    3⤵
    - Program crash
    PID:4100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4472 -ip 4472
1⤵
PID:5620

Network

MITRE ATT&CK Matrix

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