Analysis
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max time kernel
146s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
30-12-2023 07:20
Static task
static1
Behavioral task
behavioral1
Sample
11fdb7cd36201ecc62fd3a2f0c64f7ff.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
11fdb7cd36201ecc62fd3a2f0c64f7ff.exe
Resource
win10v2004-20231222-en
General
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Target
11fdb7cd36201ecc62fd3a2f0c64f7ff.exe
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Size
436KB
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MD5
11fdb7cd36201ecc62fd3a2f0c64f7ff
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SHA1
a4e80d33848bc58792caaf5a13f4baf7115af6bc
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SHA256
e78a4ee8b5c5f8a155ac5ab04cd9c3e3efc0198c0bdeade619406b55924a4035
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SHA512
cea3e3ce2c54d016e332488a06be6bc557a7f10c45da512b25484003646bee33722523753c598f9740e1afe6c84087c118776100097e6b8c3943845bd65ffff7
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SSDEEP
6144:yCtpA8wWYrNAVZM9BzVIW3gdFQAL/CGHSBCEeNYlSaFHI9etA454F006UbdQ7ek:yXfWY8ZMDWjxrHyB5e+lFIex5H06Y4
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinSystem = "C:\\Windows\\WinSystem.exe" 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Drops desktop.ini file(s) 4 IoCs
description ioc Process File created C:\DeskTop.ini 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened for modification C:\DeskTop.ini 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File created F:\DeskTop.ini 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened for modification F:\DeskTop.ini 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\D: 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened (read-only) \??\F: 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Drops autorun.inf file 1 TTPs 4 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created C:\AutoRun.inf 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened for modification C:\AutoRun.inf 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File created F:\AutoRun.inf 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened for modification F:\AutoRun.inf 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created \??\c:\Windows\WinSystem.exe 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe File opened for modification \??\c:\Windows\WinSystem.exe 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2888 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2888 11fdb7cd36201ecc62fd3a2f0c64f7ff.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\11fdb7cd36201ecc62fd3a2f0c64f7ff.exe"C:\Users\Admin\AppData\Local\Temp\11fdb7cd36201ecc62fd3a2f0c64f7ff.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2888