42f47cb41507151ec2db8422662adfd8d234533874740b6680ebd06f4f359403

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 03:33

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General

Target

PySilon-malware-3.7.5/resources/protections.py
Size

1KB
MD5

f5f7860862ff9026ae5ef626ccbf7c59
SHA1

f0b9827394cc388ed07b9cbdb44b8aafc3b44820
SHA256

8370294651cf9164b5183033e0adaeb3fea820359f9652f06713c135cf549b59
SHA512

24553294f40b295af656ccd39efedd905d6fe9d68fb78e0b4311f22907dd1b6faf2f9f37bd41b0a163a9e85d5c6a88dbb7c54226822199c9f85efaeac68fb0e1

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2592 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2592 AcroRd32.exe
2592 AcroRd32.exe

pid	process
2592	AcroRd32.exe

pid	process
2592	AcroRd32.exe
2592	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1936 wrote to memory of 2564	1936	cmd.exe	rundll32.exe
PID 1936 wrote to memory of 2564	1936	cmd.exe	rundll32.exe
PID 1936 wrote to memory of 2564	1936	cmd.exe	rundll32.exe
PID 2564 wrote to memory of 2592	2564	rundll32.exe	AcroRd32.exe
PID 2564 wrote to memory of 2592	2564	rundll32.exe	AcroRd32.exe
PID 2564 wrote to memory of 2592	2564	rundll32.exe	AcroRd32.exe
PID 2564 wrote to memory of 2592	2564	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\protections.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1936

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\protections.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2564

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\protections.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2592

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
34d64f64174bb37d4631d87f552aedf3

SHA1
a9da686d3d209647065268027b887b3422309ad4

SHA256
ef18e3128c70f0dc2f16888555aa757373158693518660bf66d24a836c6866cd

SHA512
0b88bcff524f67b6f19f9c0a249fd15b512d0c5e63c1630c2006f48ce744f5c567665c85356d57668d8aa3e87893e40dc4b6892b36ab85295a68612a8f037930

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