42f47cb41507151ec2db8422662adfd8d234533874740b6680ebd06f4f359403

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 03:33

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General

Target

PySilon-malware-3.7.5/resources/source_code/bsod.py
Size

782B
MD5

97d02293e28ece94f91f3a739897e595
SHA1

328eae0fc97dcbc5949eb5d29298eecda7ae8a08
SHA256

4f2b74ea05b9d5a79323c3e035e72903bc9a8d9ad834113b21a44006583c2714
SHA512

d3fc6dac3d4a6e587246816dbeaee280a295d7633f58a127c63481d9a864ba012e06ab3ea3b90724b25835f0ca45284be333cdd90e400705b6dcdb4ecb9b71db

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\py_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2636 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2636 AcroRd32.exe
2636 AcroRd32.exe

pid	process
2636	AcroRd32.exe

pid	process
2636	AcroRd32.exe
2636	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2204 wrote to memory of 2740	2204	cmd.exe	rundll32.exe
PID 2204 wrote to memory of 2740	2204	cmd.exe	rundll32.exe
PID 2204 wrote to memory of 2740	2204	cmd.exe	rundll32.exe
PID 2740 wrote to memory of 2636	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2636	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2636	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2636	2740	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\bsod.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\bsod.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2740

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\bsod.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2636

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
1084976fa593dcc63773d89c21425f71

SHA1
a4dbbb25a0671d3dd0e00ace2fbd1036d1fcc049

SHA256
efd2cb30b33fa2d6f69eaccf972ee9b0cf2d25d80c8359e14274335565d05661

SHA512
8c8d95089e743025e7b298ab89efcc70b77684f0140b298c7114444d3a1fa3b68d77fd7a0039c0f54b19161f13b87fbdfa62832d51cb23c7e40d4260f5b4d72e

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