Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03/10/2024, 16:35
Static task
static1
Behavioral task
behavioral1
Sample
BULLET_Code_Maker.py
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
BULLET_Code_Maker.py
Resource
win10v2004-20240802-en
General
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Target
BULLET_Code_Maker.py
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Size
8KB
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MD5
658ee74471cfd713a1662b21056e3631
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SHA1
e68e05d2b8ca2c6085c5c3380d98aa837fda00ec
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SHA256
66cc30079b4e8c86c6d9d99b374c686ba8c8869a2deaa9863746bc9395c140c8
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SHA512
26f58c521b18a715aa35dcfd60c13494dba98a62feb7482ee23640548eaffedffa1d1d2de0242fb9163c66290ba7ebe015b10045a378dcf32861a6e0d3653bff
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SSDEEP
192:0Iq9xho3b5PbD7uDfJOnypb3COccPX5bPXKXXEKX:H8ypo4ypby67aTX
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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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.py rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.py\ = "py_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_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 1532 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1532 AcroRd32.exe 1532 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2192 wrote to memory of 2828 2192 cmd.exe 31 PID 2192 wrote to memory of 2828 2192 cmd.exe 31 PID 2192 wrote to memory of 2828 2192 cmd.exe 31 PID 2828 wrote to memory of 1532 2828 rundll32.exe 32 PID 2828 wrote to memory of 1532 2828 rundll32.exe 32 PID 2828 wrote to memory of 1532 2828 rundll32.exe 32 PID 2828 wrote to memory of 1532 2828 rundll32.exe 32
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\BULLET_Code_Maker.py1⤵
- Suspicious use of WriteProcessMemory
PID:2192 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BULLET_Code_Maker.py2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2828 -
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\BULLET_Code_Maker.py"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1532
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