Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/10/2022, 16:20
Static task
static1
Behavioral task
behavioral1
Sample
16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe
Resource
win7-20220901-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe
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Size
262KB
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MD5
83bbab08a4be3daeb45d44c8c793c280
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SHA1
67e7aba451441e48e78c0c2abd18829fe91ac94a
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SHA256
16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f
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SHA512
66ae5d5195768ce37c37b72eee30e8b9658ec8baacb9c482ccf918b767c007a61270a93076ccddbc00dc95d594fce3c15bfbecf221440d7acaddf4462207a954
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SSDEEP
6144:5tuJhxxZVpcVmcOClV7cN1kyymJuc4E9C:5tgHiIAZP
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" dauvi.exe -
Executes dropped EXE 1 IoCs
pid Process 1468 dauvi.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe -
Adds Run key to start application 2 TTPs 16 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /w" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /z" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /d" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /a" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /o" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /v" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /q" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /l" dauvi.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /h" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /r" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /i" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /e" dauvi.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /t" 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dauvi = "C:\\Users\\Admin\\dauvi.exe /y" dauvi.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 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum dauvi.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 dauvi.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf dauvi.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 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe 1468 dauvi.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 1468 dauvi.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1372 wrote to memory of 1468 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 83 PID 1372 wrote to memory of 1468 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 83 PID 1372 wrote to memory of 1468 1372 16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.exe"C:\Users\Admin\AppData\Local\Temp\16cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1372 -
C:\Users\Admin\dauvi.exe"C:\Users\Admin\dauvi.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
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1468
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
262KB
MD583bbab08a4be3daeb45d44c8c793c280
SHA167e7aba451441e48e78c0c2abd18829fe91ac94a
SHA25616cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f
SHA51266ae5d5195768ce37c37b72eee30e8b9658ec8baacb9c482ccf918b767c007a61270a93076ccddbc00dc95d594fce3c15bfbecf221440d7acaddf4462207a954
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Filesize
262KB
MD583bbab08a4be3daeb45d44c8c793c280
SHA167e7aba451441e48e78c0c2abd18829fe91ac94a
SHA25616cb0ba501910ea42862e83a8e5b28cb619d26ddb99a51b530811353aedf256f
SHA51266ae5d5195768ce37c37b72eee30e8b9658ec8baacb9c482ccf918b767c007a61270a93076ccddbc00dc95d594fce3c15bfbecf221440d7acaddf4462207a954