Analysis
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max time kernel
150s -
max time network
85s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 22:33
Static task
static1
Behavioral task
behavioral1
Sample
bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe
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Size
248KB
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MD5
19f1cc6f6a172eb4a019f0c7d68f001d
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SHA1
687feaa1ddea2de75526979ebb8aed54c97c1372
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SHA256
bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0
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SHA512
17005468303a96e569c7246051e9b3904748b6a6e61459e80adbb2d3a97752ef942cce016c602347ce0ac888dab2e0ad52478edc20d56f4fe3b27e181a0fa1cc
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SSDEEP
6144:TM0VQqyyUf9dgAVRKlqBiErIsKnPmb7/jWal+FfAje+5/RxoOsutOSD/uP39RWyJ:TMVyUf9DRKlqgErIsKnPmb7/jWa1e+5T
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" bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" weisa.exe -
Executes dropped EXE 1 IoCs
pid Process 1988 weisa.exe -
Loads dropped DLL 2 IoCs
pid Process 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /i" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /f" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /Q" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /d" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /u" bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /N" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /w" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /W" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /b" weisa.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /Z" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /z" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /H" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /x" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /L" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /G" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /F" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /R" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /M" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /r" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /B" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /n" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /e" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /l" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /C" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /J" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /D" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /I" weisa.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /u" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /t" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /m" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /s" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /y" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /A" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /S" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /U" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /K" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /O" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /g" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /o" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /p" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /v" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /q" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /h" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /E" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /X" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /Y" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /T" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /c" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /P" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /a" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /k" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /j" weisa.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\weisa = "C:\\Users\\Admin\\weisa.exe /V" weisa.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 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe 1988 weisa.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 1988 weisa.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1364 wrote to memory of 1988 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 27 PID 1364 wrote to memory of 1988 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 27 PID 1364 wrote to memory of 1988 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 27 PID 1364 wrote to memory of 1988 1364 bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.exe"C:\Users\Admin\AppData\Local\Temp\bedf855fbced5c6b5fdd15e4523f29a9012b4badd33b4d465dd1e7f44a1717c0.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:1364 -
C:\Users\Admin\weisa.exe"C:\Users\Admin\weisa.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:1988
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
248KB
MD596422c56b527be643abc90bcb424b951
SHA16f152138d7687fac221b8d97959f31808348d665
SHA2564addeb54ef3f777eda136a5f5c7ebcd401423c61fb7c5a580bcec11c9169ab88
SHA512f547669224d67a8256ff502ab1af8a617fbf4f8f7959f44c5ae1aecf5740ed4bd3f5ecc6fd2ebf159aa699bf98acb565f10f0b3c6ced3ee693459ea890c55cc6
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Filesize
248KB
MD596422c56b527be643abc90bcb424b951
SHA16f152138d7687fac221b8d97959f31808348d665
SHA2564addeb54ef3f777eda136a5f5c7ebcd401423c61fb7c5a580bcec11c9169ab88
SHA512f547669224d67a8256ff502ab1af8a617fbf4f8f7959f44c5ae1aecf5740ed4bd3f5ecc6fd2ebf159aa699bf98acb565f10f0b3c6ced3ee693459ea890c55cc6
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Filesize
248KB
MD596422c56b527be643abc90bcb424b951
SHA16f152138d7687fac221b8d97959f31808348d665
SHA2564addeb54ef3f777eda136a5f5c7ebcd401423c61fb7c5a580bcec11c9169ab88
SHA512f547669224d67a8256ff502ab1af8a617fbf4f8f7959f44c5ae1aecf5740ed4bd3f5ecc6fd2ebf159aa699bf98acb565f10f0b3c6ced3ee693459ea890c55cc6
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Filesize
248KB
MD596422c56b527be643abc90bcb424b951
SHA16f152138d7687fac221b8d97959f31808348d665
SHA2564addeb54ef3f777eda136a5f5c7ebcd401423c61fb7c5a580bcec11c9169ab88
SHA512f547669224d67a8256ff502ab1af8a617fbf4f8f7959f44c5ae1aecf5740ed4bd3f5ecc6fd2ebf159aa699bf98acb565f10f0b3c6ced3ee693459ea890c55cc6