Analysis
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max time kernel
40s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 08:47
Behavioral task
behavioral1
Sample
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Resource
win10v2004-20220812-en
General
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Target
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
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Size
83KB
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MD5
42f91fbe61a133d94b2750bff131c002
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SHA1
6f7f80f97c0aa2bbae3a055d0e9fbaeee6e6aa95
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SHA256
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba
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SHA512
ce672b8a4d0657bd7e4f19c741b08f4c2f17b18595424b6f714bf7e1d4193f2850205c4ab3490daaf8efeac983fe1fc860a7d11b79ace0e858d88ba14b3dc926
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SSDEEP
1536:5AK/Eg7V/tYsadOXWP/9LQHyYiTspEhz9921ToWmWAqA:mkEgp/tYs3XWPVLBoWb2WgAx
Malware Config
Signatures
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Processes:
resource yara_rule behavioral1/memory/1632-55-0x0000000000400000-0x000000000042A000-memory.dmp upx behavioral1/memory/1632-56-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\10-1-5-3 = "c:\\program files\\Webdialer\\42c748f56443a0adad7f1d7305b3a -m" 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 2 IoCs
Processes:
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exedescription ioc process File created \??\c:\program files\Webdialer\42c748f56443a0adad7f1d7305b3a 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe File opened for modification \??\c:\program files\Webdialer\42c748f56443a0adad7f1d7305b3a 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exepid process 1632 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exepid process 1632 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe"C:\Users\Admin\AppData\Local\Temp\42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe"1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1632