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
205s -
max time network
247s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-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/sysfont.pyo
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Size
21KB
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MD5
5520013456d3f1c6905c2d9c12c1f901
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SHA1
9d13122b6ae378c65b91f6149b3256e610ec77a7
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SHA256
35be0a2d7175f04d1398d424d8ed3ca71db610e88114df18bb89a7c03a41ab22
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SHA512
fb18d8886ca978c7b29911892e1d9666f39faa2e328e3566dd2d47213612fa25c2116c89058c8772c8bc87dfa25591b9f9596b656e81c7ee99d37de32fe98c25
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SSDEEP
384:PFy95W972xa2AyQtb9tbi7QNaE8bFU+JfDWlfueQBiKg9ugZai8bv1CSmKwe+1LJ:M7nlpRg9ugcQSmKwe+1Lmz2FSUWS0O
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 10 IoCs
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pyo\ = "pyo_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_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-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pyo rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell\Read rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 1540 AcroRd32.exe 1540 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 588 wrote to memory of 976 588 cmd.exe rundll32.exe PID 588 wrote to memory of 976 588 cmd.exe rundll32.exe PID 588 wrote to memory of 976 588 cmd.exe rundll32.exe PID 976 wrote to memory of 1540 976 rundll32.exe AcroRd32.exe PID 976 wrote to memory of 1540 976 rundll32.exe AcroRd32.exe PID 976 wrote to memory of 1540 976 rundll32.exe AcroRd32.exe PID 976 wrote to memory of 1540 976 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\sysfont.pyo"1⤵
- Suspicious use of WriteProcessMemory
PID:588 -
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\sysfont.pyo2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:976 -
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\sysfont.pyo"3⤵
- Suspicious use of SetWindowsHookEx
PID:1540