3b616cb0beaacffb53884b5ba0453312d2577db598d2a877a3b251125fb281a1 | Triage

Analysis

max time kernel
455s
max time network
1175s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
23/01/2024, 11:34

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General

Target

$PLUGINSDIR/nsExec.dll
Size

6KB
MD5

c5b9fe538654a5a259cf64c2455c5426
SHA1

db45505fa041af025de53a0580758f3694b9444a
SHA256

7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7
SHA512

f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa
SSDEEP

96:xr7fhfKaGgchPzxK6bq+pKX6D8ZLidGgmkNL38:xxbGgGPzxeX6D8ZyGgmkN

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4792	4480	WerFault.exe	77

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 4480	1548	rundll32.exe	77
PID 1548 wrote to memory of 4480	1548	rundll32.exe	77
PID 1548 wrote to memory of 4480	1548	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
  2⤵
  PID:4480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 468
    3⤵
    - Program crash
    PID:4792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4480 -ip 4480
1⤵
PID:4124

Network

MITRE ATT&CK Matrix

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