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Analysis
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max time kernel
152s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 23:38
Static task
static1
Behavioral task
behavioral1
Sample
cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe
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Size
224KB
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MD5
8fa633ec67995fb01b2b77fcd2cd8efd
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SHA1
3933d22e37e478b7833c55f49996fa88937b9331
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SHA256
cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b
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SHA512
d53b0b145ad72448779e358967c6ef491625742464e394e7fe5a972a8b467e19a598a43761cf51f3d7b2a42b4626de9625ba0c19712ce50ad97a60d3f7cb3eb5
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SSDEEP
6144:yDt4/OjgH82mi0y5+jx+FmByxyHaq+3VPokA+nbibwm:yJmO882mi0y5+jx+FmByxyHaq+3VPo73
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" cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" voufu.exe -
Executes dropped EXE 1 IoCs
pid Process 4180 voufu.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 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.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\voufu = "C:\\Users\\Admin\\voufu.exe /E" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /G" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /m" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /u" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /j" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /K" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /P" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /a" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /n" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /S" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /p" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /v" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /L" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /F" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /e" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /C" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /A" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /q" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /W" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /Y" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /r" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /Q" cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /z" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /s" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /k" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /J" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /Z" voufu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /U" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /t" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /O" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /X" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /b" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /i" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /x" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /g" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /B" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /N" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /w" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /c" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /f" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /M" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /T" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /d" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /Q" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /o" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /I" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /V" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /R" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /y" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /H" voufu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /l" voufu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voufu = "C:\\Users\\Admin\\voufu.exe /D" voufu.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 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe 4180 voufu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 4180 voufu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3228 wrote to memory of 4180 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 80 PID 3228 wrote to memory of 4180 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 80 PID 3228 wrote to memory of 4180 3228 cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe"C:\Users\Admin\AppData\Local\Temp\cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.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:3228 -
C:\Users\Admin\voufu.exe"C:\Users\Admin\voufu.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:4180
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD534e06b0f605c20f0eaa42137bc547047
SHA11470dcdf2ea014d9926ab2295dd3b7cf8c3b36ac
SHA256403931eea9a8cea9355870d3c7bd4ffd6535663a8f7d46ea23559876e027849b
SHA512b8d1e15eb4a0d273f854650f447f211662b515cc9f62882dbd7b9cb9b6cd3bc9497734fe541fd787736c5c2dc31aa831fd926bf3bb54e6489e0877a6c7fe0f26
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Filesize
224KB
MD534e06b0f605c20f0eaa42137bc547047
SHA11470dcdf2ea014d9926ab2295dd3b7cf8c3b36ac
SHA256403931eea9a8cea9355870d3c7bd4ffd6535663a8f7d46ea23559876e027849b
SHA512b8d1e15eb4a0d273f854650f447f211662b515cc9f62882dbd7b9cb9b6cd3bc9497734fe541fd787736c5c2dc31aa831fd926bf3bb54e6489e0877a6c7fe0f26