Analysis
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max time kernel
11s -
max time network
13s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
13-04-2023 21:42
Static task
static1
Behavioral task
behavioral1
Sample
Duality.py
Resource
win7-20230220-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
Duality.py
Resource
win10v2004-20230220-en
windows10-2004-x64
3 signatures
150 seconds
General
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Target
Duality.py
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Size
6KB
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MD5
65a222408624c4ed523d029c7e5fa9a0
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SHA1
d1074b6c24effbda8260c85cff473bd83e48b989
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SHA256
eb308e1e175d870cf11e22596db35dad97c699bc4d5ef0f85442914d5ddee9db
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SHA512
062fb8a3107846d91be4bb680b2bb340a373888a3de9c7758e562f1079d180b420f10b7a274a431af9d154593a5c109493d6bd53d4f017681005f84e18c1992e
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SSDEEP
192:a31dwQHjiWf3vxEACfB/U/osXxkFwVvi38rvri:pKiWnKAcNw9X/v3ru
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 13 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.py rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.py\ = "py_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\open\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\edit rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\edit\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\open rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\py_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1" rundll32.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2032 NOTEPAD.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 472 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1348 wrote to memory of 472 1348 cmd.exe 29 PID 1348 wrote to memory of 472 1348 cmd.exe 29 PID 1348 wrote to memory of 472 1348 cmd.exe 29 PID 472 wrote to memory of 2032 472 rundll32.exe 30 PID 472 wrote to memory of 2032 472 rundll32.exe 30 PID 472 wrote to memory of 2032 472 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Duality.py1⤵
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Duality.py2⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:472 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Duality.py3⤵
- Opens file in notepad (likely ransom note)
PID:2032
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