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Analysis
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max time kernel
207s -
max time network
251s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 16:56
Static task
static1
Behavioral task
behavioral1
Sample
dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe
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Size
236KB
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MD5
cdc5bfb5261c095f27af85184173e052
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SHA1
aa6a02efb781395952dc1d713cd3a36cfdf86156
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SHA256
dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4
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SHA512
ed7eca4df2b78034ba8d6dd714d44d5dfb7f27dbbd99ccd916bf9c2a954c711ec797a54f4dc578cb5f38a634df7c6dc909a1dc18c91081168b58233bfbc5ae51
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SSDEEP
3072:dvAhI8es5CCTW4xyGHmRgbC1aOkmjGSsbFLqYmUnR:dvdn4xyGHmRgbCUO1jYFNR
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cpvuay.exe -
Executes dropped EXE 1 IoCs
pid Process 1564 cpvuay.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /y" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /e" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /q" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /h" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /t" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /o" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /d" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /u" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /b" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /l" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /s" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /m" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /r" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /n" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /s" dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /c" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /p" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /j" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /a" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /x" cpvuay.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /g" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /k" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /w" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /z" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /f" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /v" cpvuay.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cpvuay = "C:\\Users\\Admin\\cpvuay.exe /i" cpvuay.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum cpvuay.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 cpvuay.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe 1564 cpvuay.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 1564 cpvuay.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2060 wrote to memory of 1564 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 88 PID 2060 wrote to memory of 1564 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 88 PID 2060 wrote to memory of 1564 2060 dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe"C:\Users\Admin\AppData\Local\Temp\dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\Users\Admin\cpvuay.exe"C:\Users\Admin\cpvuay.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1564
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1232
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
236KB
MD5cdc5bfb5261c095f27af85184173e052
SHA1aa6a02efb781395952dc1d713cd3a36cfdf86156
SHA256dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4
SHA512ed7eca4df2b78034ba8d6dd714d44d5dfb7f27dbbd99ccd916bf9c2a954c711ec797a54f4dc578cb5f38a634df7c6dc909a1dc18c91081168b58233bfbc5ae51
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Filesize
236KB
MD5cdc5bfb5261c095f27af85184173e052
SHA1aa6a02efb781395952dc1d713cd3a36cfdf86156
SHA256dbc9b913c3ea187349b3496da9fcafdeb897059605b2b2a179ed420d0e599bf4
SHA512ed7eca4df2b78034ba8d6dd714d44d5dfb7f27dbbd99ccd916bf9c2a954c711ec797a54f4dc578cb5f38a634df7c6dc909a1dc18c91081168b58233bfbc5ae51