Analysis
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max time kernel
150s -
max time network
79s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
29/11/2022, 03:05
Static task
static1
Behavioral task
behavioral1
Sample
c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe
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Size
252KB
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MD5
0ac509b07075071362f199dc64d012b3
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SHA1
7a06dc957353ff3db3a24b2e9215b0fc55535302
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SHA256
c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40
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SHA512
017d67d80b8aa79cbcb4c83705d65d16db29eaee8e1f0c097fdf2064536df418fb241f4bb20cbeb144fb63c3dfe5d75652ac445d2ac954e2db4eef9c855da5f2
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SSDEEP
3072:VrAc/x7La2sWvZ0OgRqTAJcLGGO/xuiEyJeOOeGs5oxnkNzQKtjWW:VrlFx/ZLA4PmG6d7
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" vauna.exe -
Executes dropped EXE 1 IoCs
pid Process 1728 vauna.exe -
Loads dropped DLL 2 IoCs
pid Process 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /o" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /f" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /P" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /Z" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /W" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /u" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /h" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /i" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /Y" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /z" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /p" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /B" vauna.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /r" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /R" vauna.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /Q" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /O" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /D" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /M" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /l" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /e" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /S" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /T" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /n" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /E" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /X" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /C" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /L" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /Y" c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /g" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /V" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /j" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /H" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /N" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /m" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /U" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /w" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /s" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /y" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /v" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /q" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /F" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /A" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /d" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /G" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /t" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /x" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /a" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /I" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /J" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /K" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /c" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /k" vauna.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vauna = "C:\\Users\\Admin\\vauna.exe /b" vauna.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 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe 1728 vauna.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 1728 vauna.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1632 wrote to memory of 1728 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 28 PID 1632 wrote to memory of 1728 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 28 PID 1632 wrote to memory of 1728 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 28 PID 1632 wrote to memory of 1728 1632 c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.exe"C:\Users\Admin\AppData\Local\Temp\c8287d313aa69a4fe7667a19c1fe4c4ef9ccfc4c4e148d8912fb716408803c40.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:1632 -
C:\Users\Admin\vauna.exe"C:\Users\Admin\vauna.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:1728
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
252KB
MD56dd24c914630446d6867dc7ad1236858
SHA1bef4091207f65ee935f84b7d394c190a3d925f23
SHA256a1d37f370e572a63e449892e0dec61a1b6de207b9c0fdc8f0d853c8b7e5b3d42
SHA5122fd9ea6ad76ea4f0bc85317ddca5becd2a0f1c4861ba740fe3db599a5d7368b713b3af29fbb5b019541beb8c12c97305ef6fd31a3d9e7f8101a1bafe793c697e
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Filesize
252KB
MD56dd24c914630446d6867dc7ad1236858
SHA1bef4091207f65ee935f84b7d394c190a3d925f23
SHA256a1d37f370e572a63e449892e0dec61a1b6de207b9c0fdc8f0d853c8b7e5b3d42
SHA5122fd9ea6ad76ea4f0bc85317ddca5becd2a0f1c4861ba740fe3db599a5d7368b713b3af29fbb5b019541beb8c12c97305ef6fd31a3d9e7f8101a1bafe793c697e
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Filesize
252KB
MD56dd24c914630446d6867dc7ad1236858
SHA1bef4091207f65ee935f84b7d394c190a3d925f23
SHA256a1d37f370e572a63e449892e0dec61a1b6de207b9c0fdc8f0d853c8b7e5b3d42
SHA5122fd9ea6ad76ea4f0bc85317ddca5becd2a0f1c4861ba740fe3db599a5d7368b713b3af29fbb5b019541beb8c12c97305ef6fd31a3d9e7f8101a1bafe793c697e
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Filesize
252KB
MD56dd24c914630446d6867dc7ad1236858
SHA1bef4091207f65ee935f84b7d394c190a3d925f23
SHA256a1d37f370e572a63e449892e0dec61a1b6de207b9c0fdc8f0d853c8b7e5b3d42
SHA5122fd9ea6ad76ea4f0bc85317ddca5becd2a0f1c4861ba740fe3db599a5d7368b713b3af29fbb5b019541beb8c12c97305ef6fd31a3d9e7f8101a1bafe793c697e