891408262a391aa3518471825e5bfe85b4fab8ec5385fc7082e5ad50ee67a8f8 | Triage

Analysis

max time kernel
139s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:11

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General

Target

$PLUGINSDIR/nsExec.dll
Size

6KB
MD5

ac0f93b2dec82e9579bff14c8572a6c8
SHA1

6460244317cbb77e342adb3561ec3acb496c84d5
SHA256

3aa8e0abadefea2de58281198acfe48713a1d5b43aea5619f563cea098e9fd34
SHA512

8055a6af150c45547927499f9cbf645d7f39c8e4f9caff4726fd711d2401abca01a79837095e5752b9f57b06446973ea6506796f2223bdb0179243d6e0575bd2
SSDEEP

96:5OBtEB2flLkatAthPZJoi9jpfW/er6cBbcB/NFyVOHd0+u3wEX:5hB2flXAVJtjf6cBbcB/N8Ved0PJ

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1052 4892 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3572 wrote to memory of 4892	3572	rundll32.exe	rundll32.exe
PID 3572 wrote to memory of 4892	3572	rundll32.exe	rundll32.exe
PID 3572 wrote to memory of 4892	3572	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:3572
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
  2⤵
  PID:4892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 612
    3⤵
    - Program crash
    PID:1052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4892 -ip 4892
1⤵
PID:4284

Network

MITRE ATT&CK Matrix

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