Analysis
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max time kernel
94s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-12-2024 15:08
Static task
static1
Behavioral task
behavioral1
Sample
3fbe557c7ec8409f30604b0f5e365f70.exe
Resource
win7-20240903-en
General
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Target
3fbe557c7ec8409f30604b0f5e365f70.exe
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Size
4.2MB
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MD5
3fbe557c7ec8409f30604b0f5e365f70
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SHA1
00d9f4548c93be387f68c1b7aeedcf4c75873b60
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SHA256
f4e7b423983d4606cb9a72876f57c870884b40556ab6ea3da498d69e02acacab
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SHA512
802d3925592429a116f24c5a35723f030ea6fc4924dc201eb69a09bfeda57aac3e0c2246d0e213d131b888515936c31d13c03fd6c32c2d091a3ddc2437c1642d
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SSDEEP
98304:Lcv0DvP7v4m0C6OkeSEj18aRZTZgE5CT+zM:/vjgmj36Ej931guCT
Malware Config
Extracted
cryptbot
Signatures
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Cryptbot family
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Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF 3fbe557c7ec8409f30604b0f5e365f70.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 3fbe557c7ec8409f30604b0f5e365f70.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 3fbe557c7ec8409f30604b0f5e365f70.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 3fbe557c7ec8409f30604b0f5e365f70.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine 3fbe557c7ec8409f30604b0f5e365f70.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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2204 3fbe557c7ec8409f30604b0f5e365f70.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3fbe557c7ec8409f30604b0f5e365f70.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe 2204 3fbe557c7ec8409f30604b0f5e365f70.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3fbe557c7ec8409f30604b0f5e365f70.exe"C:\Users\Admin\AppData\Local\Temp\3fbe557c7ec8409f30604b0f5e365f70.exe"1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2204