Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 17:24
Static task
static1
Behavioral task
behavioral1
Sample
TAXDOCUMENTS_TIMCH.rar
Resource
win7-20231215-en
5 signatures
150 seconds
General
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Target
TAXDOCUMENTS_TIMCH.rar
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Size
2.3MB
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MD5
55ba326f0e05ac78754238757774470e
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SHA1
69a2a16a3baa58b0be05a8604379e59689aea3df
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SHA256
2c18c04ee54fe7b915537e2ed85e9b4ad43efeeddd6756345afffd02bae19205
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SHA512
174144bfea0ed59ae898eb0f668c6e1035b29dddb4c640cc6131e9e173a845abfdddaa3e777b1c79ce1d47addeb8c3ca805d707ff47a81a8b5ac30ad640b5b63
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SSDEEP
49152:vP55W8qvmr0niTbxUMnBpwxKYhmzIjXU5so4JzlwT2:5c8aE+AuGBpfYMzkU2zzlwC
Malware Config
Signatures
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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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000_Classes\Local Settings cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeRestorePrivilege 4720 7zFM.exe Token: 35 4720 7zFM.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4720 7zFM.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4420 wrote to memory of 4720 4420 cmd.exe 85 PID 4420 wrote to memory of 4720 4420 cmd.exe 85
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\TAXDOCUMENTS_TIMCH.rar1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4420 -
C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\TAXDOCUMENTS_TIMCH.rar"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4720
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