75ef5c2c26d3ccc5719073b3a6f2e1a3124843ef91bf5b65f7afdab4a90f9d8d | Triage

Analysis

max time kernel
140s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 06:43

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

3e6bf00b3ac976122f982ae2aadb1c51
SHA1

caab188f7fdc84d3fdcb2922edeeb5ed576bd31d
SHA256

4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe
SHA512

1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706
SSDEEP

192:eP24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35OlbSl:T8QIl975eXqlWBrz7YLOlb

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3684 3820 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4188 wrote to memory of 3820	4188	rundll32.exe	rundll32.exe
PID 4188 wrote to memory of 3820	4188	rundll32.exe	rundll32.exe
PID 4188 wrote to memory of 3820	4188	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4188
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:3820
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 612
    3⤵
    - Program crash
    PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3820 -ip 3820
1⤵
PID:2432

Network

MITRE ATT&CK Matrix

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