42f47cb41507151ec2db8422662adfd8d234533874740b6680ebd06f4f359403

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 03:33

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General

Target

PySilon-malware-3.7.5/compiler.py
Size

4KB
MD5

aadef420fde1ac41b1635c7c3ad28e5e
SHA1

ad6f209d53d39418dbc057dc432527bac5d3f40b
SHA256

0202e6c73f6bd429cb704474354898c8aad29885b058a25aca738cda75bbb69d
SHA512

f7f3c78f7a86d4414be2917ae34e35b24f9f18e1ae451a1b748fb21b6e856034f9581a4d13e5a674537180293b106a4a5efebe45e03d9ff69f500be730424194
SSDEEP

96:ODwmTAYUtPvMjoDpz0I9dwsKgwS8n151QqlrAFUetud18ZCrGOF+L6v:O6YUtPvMMDIul+tQu0qe0p+L6v

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-1-5-21-2737914667-933161113-3798636211-1000_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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2324 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2324 AcroRd32.exe
2324 AcroRd32.exe

pid	process
2324	AcroRd32.exe

pid	process
2324	AcroRd32.exe
2324	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2280 wrote to memory of 2712	2280	cmd.exe	rundll32.exe
PID 2280 wrote to memory of 2712	2280	cmd.exe	rundll32.exe
PID 2280 wrote to memory of 2712	2280	cmd.exe	rundll32.exe
PID 2712 wrote to memory of 2324	2712	rundll32.exe	AcroRd32.exe
PID 2712 wrote to memory of 2324	2712	rundll32.exe	AcroRd32.exe
PID 2712 wrote to memory of 2324	2712	rundll32.exe	AcroRd32.exe
PID 2712 wrote to memory of 2324	2712	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\compiler.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2280

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\compiler.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2712

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\compiler.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2324

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
5fa1fa5c0fbacb68a5efc9391ba220d2

SHA1
a8f83c05e52e92236d0bd60e78b68de88168ef59

SHA256
cae7d55c4e53e9ee16254912198ad1a1263e93dc129d204c1f20856a9897a1f0

SHA512
94bf9a4bfb1f8da83c9c41ca3ae8d84bd10ef8c1591200e1ffb36c525a3fd872fdd930941e5a0766fe11f4baf919312e5104b1168c79dd2b928855b7f4b60dd6

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