Analysis
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max time kernel
150s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
28/10/2022, 18:25
Static task
static1
Behavioral task
behavioral1
Sample
c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe
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Size
224KB
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MD5
0128cf936a8b37c874548a7e74798830
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SHA1
43d4e494b6731b420b03a497b201c78f395f62d3
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SHA256
c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b
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SHA512
44aed777e3da471ee789326bf9da584c6c1bd1b5921c9670b443febc8939da7c3b75e62c55de87b7f5c0e80ad48fac0756e1a5fd3c0b60c532bf776b653b5de3
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SSDEEP
3072:NXyqNsMoBuMZVpl2mclbj4Uvx+8ysNOu+2eRcKksU61JkkX39RLrw4ySKUbax2+l:0qN5Yp4LnbmlrZ3y
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" sauic.exe -
Executes dropped EXE 1 IoCs
pid Process 1144 sauic.exe -
Loads dropped DLL 2 IoCs
pid Process 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /r" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /y" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /a" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /e" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /x" sauic.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /p" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /i" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /d" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /w" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /v" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /k" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /l" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /m" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /j" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /c" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /n" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /i" c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /q" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /b" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /g" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /u" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /s" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /o" sauic.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /h" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /t" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /f" sauic.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\sauic = "C:\\Users\\Admin\\sauic.exe /z" sauic.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 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe 1144 sauic.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 1144 sauic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1928 wrote to memory of 1144 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 26 PID 1928 wrote to memory of 1144 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 26 PID 1928 wrote to memory of 1144 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 26 PID 1928 wrote to memory of 1144 1928 c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe"C:\Users\Admin\AppData\Local\Temp\c71bb2926ffb97266a9f8ea83f2f5add3480bf1488d9e908c5ecccf1fbd4eb0b.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1928 -
C:\Users\Admin\sauic.exe"C:\Users\Admin\sauic.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:1144
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD5213575d32e80267e0520666090464622
SHA1f9d4d9d191844579bd28551fe7cc9203aa2c4518
SHA256925c607905f1bdd0eb5e1ac073c0f4e7070d7d7f85398afa3f7870f6f18e95c4
SHA5125e7f9a4acb25083b9ba571742116102da4ff940866da943397cb06a6c427c46cf5ed1d0e4dd6968ce075d0c6e42b7b5e7aa7a917c37b71ccde30bc6fbca66937
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Filesize
224KB
MD5213575d32e80267e0520666090464622
SHA1f9d4d9d191844579bd28551fe7cc9203aa2c4518
SHA256925c607905f1bdd0eb5e1ac073c0f4e7070d7d7f85398afa3f7870f6f18e95c4
SHA5125e7f9a4acb25083b9ba571742116102da4ff940866da943397cb06a6c427c46cf5ed1d0e4dd6968ce075d0c6e42b7b5e7aa7a917c37b71ccde30bc6fbca66937
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Filesize
224KB
MD5213575d32e80267e0520666090464622
SHA1f9d4d9d191844579bd28551fe7cc9203aa2c4518
SHA256925c607905f1bdd0eb5e1ac073c0f4e7070d7d7f85398afa3f7870f6f18e95c4
SHA5125e7f9a4acb25083b9ba571742116102da4ff940866da943397cb06a6c427c46cf5ed1d0e4dd6968ce075d0c6e42b7b5e7aa7a917c37b71ccde30bc6fbca66937
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Filesize
224KB
MD5213575d32e80267e0520666090464622
SHA1f9d4d9d191844579bd28551fe7cc9203aa2c4518
SHA256925c607905f1bdd0eb5e1ac073c0f4e7070d7d7f85398afa3f7870f6f18e95c4
SHA5125e7f9a4acb25083b9ba571742116102da4ff940866da943397cb06a6c427c46cf5ed1d0e4dd6968ce075d0c6e42b7b5e7aa7a917c37b71ccde30bc6fbca66937