100dba151efe66c842fde4337857fd3db4568c1e3ee008e412927e67ed72094e | Triage

Analysis

max time kernel
90s
max time network
100s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
14-05-2024 22:10

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General

Target

$PLUGINSDIR/System.dll
Size

12KB
MD5

792b6f86e296d3904285b2bf67ccd7e0
SHA1

966b16f84697552747e0ddd19a4ba8ab5083af31
SHA256

c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
SHA512

97edc3410b88ca31abc0af0324258d2b59127047810947d0fb5e7e12957db34d206ffd70a0456add3a26b0546643ff0234124b08423c2c9ffe9bdec6eb210f2c
SSDEEP

192:rFiQJ771Jt17C8F1A5xjGNNvgFOiLb7lrT/L93:X71Jt48F2eNvgFF/L

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3900 488 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2620 wrote to memory of 488	2620	rundll32.exe	rundll32.exe
PID 2620 wrote to memory of 488	2620	rundll32.exe	rundll32.exe
PID 2620 wrote to memory of 488	2620	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:2620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 460
3⤵
- Program crash
PID:3900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 488 -ip 488
1⤵
PID:3004

Network

MITRE ATT&CK Matrix

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