4a9d815f284adda187982e2b24da2beaad860739bc4b4cb1cf26408e7c221dd6 | Triage

Analysis

max time kernel
1484s
max time network
1497s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
19-05-2024 05:54

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General

Target

$PLUGINSDIR/shell_downloader.dll
Size

2.3MB
MD5

c052c0a2ed833d924b7799625413ac1c
SHA1

bdd08a29f4de283ba0eb3cda4abc26f6e85d4d5e
SHA256

098972cf9ddc9d574130e025a252a99b278de9cc0ae700acfb8c935c24eb1172
SHA512

89e67c29d5d8a401a70a5b572844f24bfde82d5d4259ecc5e6f12be0ddb434995a2e985914fc421973998e3fdc48b133e269e8bb1da513ec66199f01060162f1
SSDEEP

49152:ed86lJRUahxtsyZj1+z9DApoEV+i4u2VFZhDy+:ed86WsCA1+BDwdV94u2VFi

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2744 3096 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4880 wrote to memory of 3096	4880	rundll32.exe	rundll32.exe
PID 4880 wrote to memory of 3096	4880	rundll32.exe	rundll32.exe
PID 4880 wrote to memory of 3096	4880	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\shell_downloader.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4880

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\shell_downloader.dll,#1
2⤵
PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3096 -s 620
3⤵
- Program crash
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3096 -ip 3096
1⤵
PID:1224

Network

MITRE ATT&CK Matrix

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