Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
26/05/2024, 00:45
Behavioral task
behavioral1
Sample
Pyth-external.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
Pyth-external.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
main.pyc
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
main.pyc
Resource
win10v2004-20240508-en
General
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Target
main.pyc
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Size
7KB
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MD5
c563117c587e060a5835e07f13e9b0fc
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SHA1
6be41e32365ed3842693b255bb07f42133218493
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SHA256
dbc0fb0ba9d48665c089023d7acde68f5bfd8dce4b545b5367e0a1ee581a7d6c
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SHA512
7c837fb49486c1f6b3731c948b989123686d70c2b38b636ee19d18aa558d5fe4f8c42626b28dfc88afe5391322160936d26fc9090c2da0feb0e293b63696fcf8
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SSDEEP
192:wLPCRSD8wiWdXwQ235JhwaD7884CMdwDTJnw:KPCRvWuT2984CPZw
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2580 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2580 AcroRd32.exe 2580 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2856 wrote to memory of 2616 2856 cmd.exe 29 PID 2856 wrote to memory of 2616 2856 cmd.exe 29 PID 2856 wrote to memory of 2616 2856 cmd.exe 29 PID 2616 wrote to memory of 2580 2616 rundll32.exe 30 PID 2616 wrote to memory of 2580 2616 rundll32.exe 30 PID 2616 wrote to memory of 2580 2616 rundll32.exe 30 PID 2616 wrote to memory of 2580 2616 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2616 -
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\main.pyc"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2580
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5498b9866feaacdbf55b3555c9fa7edb8
SHA1ec6e5ece2d1360b68391ab8bb2a936c8d000bbf3
SHA256b1e43c2169cca9d58df6c956e45f9ea8a41c5346f5f530cf1b925d9a6984b0b2
SHA512c64ca7e38f644ec57da3c4f53eefc9d166be4f66e8a7b31c15be0b2892b4b1e279e351eb78c8b6cc35fdb2ce36b90b69cee0243e219140a6cdd40c3f25523acc