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
207s -
max time network
166s -
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/posixpath.pyo
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Size
11KB
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MD5
a060562c277d16d9b54e29cc81adf978
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SHA1
48a51e58696efb2cbecc9c8540920b5377f1ab0f
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SHA256
ebbe8783b536c4be763f90747aeb34eba9008460be794aa8668d885e46eb458a
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SHA512
e0c95deb82e148eed3e4f9f805a7db3fcf7fc14a2b87a7d314e46fef27d31048f676e7c9a8e898c522a2f1c0715e8b1ea9b189cc6ad65ac6d86d7b025c4e8717
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SSDEEP
192:Qbo+b22x9X3MscajMFNPX+EX2f/gDPjU7XHuXzwMwIGz+RZ+iCYrC0ZPAllPRZ+r:Ao+fxx31cajMDPX+EX2f/cjU7XHuXzw8
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 Set value (str) \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\ = "pyo_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pyo_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.pyo 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 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 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 -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 760 AcroRd32.exe 760 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 1292 wrote to memory of 1388 1292 cmd.exe rundll32.exe PID 1292 wrote to memory of 1388 1292 cmd.exe rundll32.exe PID 1292 wrote to memory of 1388 1292 cmd.exe rundll32.exe PID 1388 wrote to memory of 760 1388 rundll32.exe AcroRd32.exe PID 1388 wrote to memory of 760 1388 rundll32.exe AcroRd32.exe PID 1388 wrote to memory of 760 1388 rundll32.exe AcroRd32.exe PID 1388 wrote to memory of 760 1388 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\posixpath.pyo"1⤵
- Suspicious use of WriteProcessMemory
PID:1292 -
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\posixpath.pyo2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1388 -
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\posixpath.pyo"3⤵
- Suspicious use of SetWindowsHookEx
PID:760