Overview
overview
3Static
static
My.Stepsis...he.pyo
windows7-x64
3My.Stepsis...he.pyo
windows10-2004-x64
3My.Stepsis...os.pyo
windows7-x64
3My.Stepsis...os.pyo
windows10-2004-x64
3My.Stepsis...th.pyo
windows7-x64
3My.Stepsis...th.pyo
windows10-2004-x64
3My.Stepsis...__.pyo
windows7-x64
3My.Stepsis...__.pyo
windows10-2004-x64
3My.Stepsis...at.pyo
windows7-x64
3My.Stepsis...at.pyo
windows10-2004-x64
3My.Stepsis...te.pyo
windows7-x64
3My.Stepsis...te.pyo
windows10-2004-x64
3My.Stepsis...nt.pyo
windows7-x64
3My.Stepsis...nt.pyo
windows10-2004-x64
3My.Stepsis...__.pyo
windows7-x64
3My.Stepsis...__.pyo
windows10-2004-x64
3Analysis
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max time kernel
211s -
max time network
182s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 13:39
Static task
static1
Behavioral task
behavioral1
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/linecache.pyo
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/linecache.pyo
Resource
win10v2004-20220901-en
Behavioral task
behavioral3
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/os.pyo
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/os.pyo
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/posixpath.pyo
Resource
win7-20220812-en
Behavioral task
behavioral6
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/posixpath.pyo
Resource
win10v2004-20220812-en
Behavioral task
behavioral7
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/__init__.pyo
Resource
win7-20220901-en
Behavioral task
behavioral8
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/__init__.pyo
Resource
win10v2004-20220812-en
Behavioral task
behavioral9
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/compat.pyo
Resource
win7-20220812-en
Behavioral task
behavioral10
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/compat.pyo
Resource
win10v2004-20220812-en
Behavioral task
behavioral11
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/sprite.pyo
Resource
win7-20220812-en
Behavioral task
behavioral12
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/sprite.pyo
Resource
win10v2004-20221111-en
Behavioral task
behavioral13
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/sysfont.pyo
Resource
win7-20221111-en
Behavioral task
behavioral14
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/sysfont.pyo
Resource
win10v2004-20221111-en
Behavioral task
behavioral15
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/renpy/__init__.pyo
Resource
win7-20221111-en
Behavioral task
behavioral16
Sample
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/renpy/__init__.pyo
Resource
win10v2004-20220812-en
General
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Target
My.Stepsis.is.a.Futanari/My Stepsis is a Futanari/lib/linux-x86_64/lib/python2.7/pygame_sdl2/sprite.pyo
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Size
51KB
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MD5
89ea054aace2e5ccb3128cc6a3f3bd5a
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SHA1
49dd79cd8d518b3f341d04b913ba99963b453ce7
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SHA256
6a319f77e0c2854499eb39a643ec4dd39dd5e8d5391029c0d29fe07aaa1d12b5
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SHA512
93192a77524a4927af6faa9020382b3e721d33dbca30ac26dfe6a4d7a193b9b232523e23be4db04b06e1809abc0bf8dd70d263b14c4bbf16ba6cd11696504d87
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SSDEEP
1536:tkFQVG4ewDnjcnHiGqTAFIOQlXJQt2rRcuVjB1GFPRb4zc:t0IewDnjcHiGKOQlXJQt2rRcuVjr85bR
Malware Config
Signatures
-
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 10 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.pyo rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.pyo\ = "pyo_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 304 AcroRd32.exe 304 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 1764 wrote to memory of 1832 1764 cmd.exe rundll32.exe PID 1764 wrote to memory of 1832 1764 cmd.exe rundll32.exe PID 1764 wrote to memory of 1832 1764 cmd.exe rundll32.exe PID 1832 wrote to memory of 304 1832 rundll32.exe AcroRd32.exe PID 1832 wrote to memory of 304 1832 rundll32.exe AcroRd32.exe PID 1832 wrote to memory of 304 1832 rundll32.exe AcroRd32.exe PID 1832 wrote to memory of 304 1832 rundll32.exe AcroRd32.exe
Processes
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C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\My.Stepsis.is.a.Futanari\My Stepsis is a Futanari\lib\linux-x86_64\lib\python2.7\pygame_sdl2\sprite.pyo"1⤵
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\My.Stepsis.is.a.Futanari\My Stepsis is a Futanari\lib\linux-x86_64\lib\python2.7\pygame_sdl2\sprite.pyo2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1832 -
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\My.Stepsis.is.a.Futanari\My Stepsis is a Futanari\lib\linux-x86_64\lib\python2.7\pygame_sdl2\sprite.pyo"3⤵
- Suspicious use of SetWindowsHookEx
PID:304