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Analysis
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max time kernel
156s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 22:47
Static task
static1
Behavioral task
behavioral1
Sample
3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe
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Size
128KB
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MD5
5ef9409bbe167ea02f027660e0069680
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SHA1
cc979b2dad20d86e8ab1a78f05d80f93f22cc5c6
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SHA256
3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed
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SHA512
bf3837a64f6fd8e962acea66bbbdce845515ea8499e134f3f016609ccc5ebc56787202bac54732c026e609421686e8b95585f4f94a863a995970e1c397b34469
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SSDEEP
1536:Z21lsi2mhgIuFQFvHwd6PXOYb7gXWgWKsEHXNeG0h/y:E1lsi2sg/FQByYb7gvsEwq
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" siaefax.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe -
Executes dropped EXE 1 IoCs
pid Process 1484 siaefax.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /L" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /O" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /y" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /T" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /v" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /R" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /H" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /I" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /z" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /q" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /i" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /D" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /n" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /w" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /E" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /U" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /J" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /S" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /Z" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /p" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /c" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /e" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /F" siaefax.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /B" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /M" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /j" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /Q" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /X" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /a" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /N" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /k" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /l" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /Q" 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /K" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /Y" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /P" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /A" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /t" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /C" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /h" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /f" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /o" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /d" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /r" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /b" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /g" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /x" siaefax.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /G" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /V" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /s" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /W" siaefax.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siaefax = "C:\\Users\\Admin\\siaefax.exe /u" siaefax.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe 1484 siaefax.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 1484 siaefax.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4240 wrote to memory of 1484 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 83 PID 4240 wrote to memory of 1484 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 83 PID 4240 wrote to memory of 1484 4240 3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe"C:\Users\Admin\AppData\Local\Temp\3b10cc153d58ecf216caaa3add908d12c17e6481a3df5029c9abf34f1fd441ed.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4240 -
C:\Users\Admin\siaefax.exe"C:\Users\Admin\siaefax.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1484
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
128KB
MD5daac0098b03a0c5415677df222271c68
SHA17ee7292f8e0aad5d12d61a0a185d4296a3a283ba
SHA25615842e7c87e178efb4c8fcaf9579f9ac7147d10642a507df484b951d79700da1
SHA512f65b19d0908fb15b01181283a2bc3d9fb2de9a498de698a9c8d1d8bd3bfa59a4e2fad0db82cbf089ea197c4abf1857b52e86e685cc5e105fb17532ba372add9e
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Filesize
128KB
MD5daac0098b03a0c5415677df222271c68
SHA17ee7292f8e0aad5d12d61a0a185d4296a3a283ba
SHA25615842e7c87e178efb4c8fcaf9579f9ac7147d10642a507df484b951d79700da1
SHA512f65b19d0908fb15b01181283a2bc3d9fb2de9a498de698a9c8d1d8bd3bfa59a4e2fad0db82cbf089ea197c4abf1857b52e86e685cc5e105fb17532ba372add9e