b09c72bf641ac0a02873bc9621c4985b6f9d08f41de614e33b79b91bf1f6c857 | Triage

Analysis

max time kernel
90s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2024 14:24

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

17ed1c86bd67e78ade4712be48a7d2bd
SHA1

1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256

bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA512

0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
SSDEEP

192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4976 1500 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1464 wrote to memory of 1500	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1500	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1500	1464	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:1464
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  PID:1500
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 620
    3⤵
    - Program crash
    PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1500 -ip 1500
1⤵
PID:4572

Network

MITRE ATT&CK Matrix

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