Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
07-12-2024 03:36
Static task
static1
Behavioral task
behavioral1
Sample
eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe
Resource
win7-20241023-en
General
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Target
eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe
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Size
4.2MB
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MD5
b5b2b0f7c16a730f9631829aee670fe6
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SHA1
6f9dee7399db43d8e195544620be564c3d32d27a
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SHA256
eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd
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SHA512
4ba5dc7c6fa58802bc71cfe9dec5a19d879a7fb95f951959efa30bc18e344944275c271399ffab7049e50e4c8899920f653fe996e8bfe2f61b8e21676183a4e9
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SSDEEP
98304:LuNws0kds0+/J8l7LLpD73UVR54wU1uV1r0bcXzij:LIwGs09LVET54wU1Sh0g6
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 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.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__ eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.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 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.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 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1648 2520 WerFault.exe 29 -
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 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2520 wrote to memory of 1648 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 31 PID 2520 wrote to memory of 1648 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 31 PID 2520 wrote to memory of 1648 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 31 PID 2520 wrote to memory of 1648 2520 eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.exe"C:\Users\Admin\AppData\Local\Temp\eaa9cb70a559363110329d750dcf11948850ce44999bc71ff1a6e9c8ce6c85fd.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
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2520 -s 6562⤵
- Program crash
PID:1648
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