21be0a068d7d1b57578bfb2ed850b3f3b1cfe4a4c47981ead95abdb8c20278fe | Triage

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23-01-2024 18:54

Sharing

Report Analysis Logs

General

Target

$PLUGINSDIR/StdUtils.dll
Size

100KB
MD5

c6a6e03f77c313b267498515488c5740
SHA1

3d49fc2784b9450962ed6b82b46e9c3c957d7c15
SHA256

b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
SHA512

9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
SSDEEP

3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1736 2624 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 620 wrote to memory of 2624	620	rundll32.exe	rundll32.exe
PID 2624 wrote to memory of 1736	2624	rundll32.exe	WerFault.exe
PID 2624 wrote to memory of 1736	2624	rundll32.exe	WerFault.exe
PID 2624 wrote to memory of 1736	2624	rundll32.exe	WerFault.exe
PID 2624 wrote to memory of 1736	2624	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:2624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 224
3⤵
- Program crash
PID:1736

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads