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Analysis
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max time kernel
176s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/12/2022, 02:30
Static task
static1
Behavioral task
behavioral1
Sample
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
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Size
144KB
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MD5
1e8824a7f2a029f9d1ec851d9437ceeb
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SHA1
00941217a6f25814b09baf5287440ea4d9ebf5cc
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SHA256
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c
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SHA512
349979937a0926b6d75f5cd7147625332b49181c3a92c9ad058701ef607d5dd73e137fd82715e8d1a15f71a3e9d311e8437610a98ba612bbc25f0e92dc09b1cc
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SSDEEP
3072:N6n6lcWd5gVUL5mynf1lFCm8hlJvzMwgv21s4oQZiEBs:N6n521Cm8hlJvzMwgvpW8
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" f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fiuvo.exe -
Executes dropped EXE 1 IoCs
pid Process 1388 fiuvo.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 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /M" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /i" fiuvo.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /P" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /C" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /R" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /q" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /b" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /A" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /J" fiuvo.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /x" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /a" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /G" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /e" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /B" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /v" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /T" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /h" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /Y" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /L" f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /Q" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /t" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /o" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /c" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /L" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /F" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /V" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /r" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /m" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /z" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /s" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /H" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /W" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /w" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /S" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /y" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /n" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /l" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /f" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /K" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /d" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /p" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /u" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /D" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /g" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /O" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /E" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /k" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /N" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /j" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /U" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /Z" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /X" fiuvo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fiuvo = "C:\\Users\\Admin\\fiuvo.exe /I" fiuvo.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 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe 1388 fiuvo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 1388 fiuvo.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4744 wrote to memory of 1388 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 82 PID 4744 wrote to memory of 1388 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 82 PID 4744 wrote to memory of 1388 4744 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe"C:\Users\Admin\AppData\Local\Temp\f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.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:4744 -
C:\Users\Admin\fiuvo.exe"C:\Users\Admin\fiuvo.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:1388
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
144KB
MD5ca6ddba656d26057da6058cea0d97e83
SHA165146b6f6f3cb91d1d9ed20ac2a3a33d6ecfe35f
SHA256ed0d541f6dc38c1a805eb355f64da8b81bdb107368d2cf555b3f07c20d020c7b
SHA512370855aaef54dbdc42ac846d3333491e1a6139d07d5a1fd76ba743f20dedced838e543e89564b3e877250a0d27ebd09af98408500c1e55750420aa54127e05c4
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Filesize
144KB
MD5ca6ddba656d26057da6058cea0d97e83
SHA165146b6f6f3cb91d1d9ed20ac2a3a33d6ecfe35f
SHA256ed0d541f6dc38c1a805eb355f64da8b81bdb107368d2cf555b3f07c20d020c7b
SHA512370855aaef54dbdc42ac846d3333491e1a6139d07d5a1fd76ba743f20dedced838e543e89564b3e877250a0d27ebd09af98408500c1e55750420aa54127e05c4