Analysis
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max time kernel
1733s -
max time network
1144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2024, 18:59
General
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Target
nkt_loader.exe
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Size
11.1MB
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MD5
0b2c44818a4ea56d9a9605f212caa43b
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SHA1
220a614fa0e8e2893764898365855731180ec80c
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SHA256
de7ebab6e655913a5606ed9c516e45a0c4b351a09de7625a0c446e509750b07b
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SHA512
7bec96253914353ca10856d7c5368ae7ec6c524e7c068482a39024706de6382699483afe363ededf7423f66b145129ac7c6db987b5d7aa30462a8e4ee3045c4d
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SSDEEP
196608:sr2y067U17MASS+VV7YY2syQ4kz7KZL22D4pnxlu78ZxTUlXa:a2y0H7MI67YkyBk82E493uw/TUk
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ nkt_loader.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 nkt_loader.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion nkt_loader.exe -
resource yara_rule behavioral1/memory/4400-0-0x0000000000400000-0x0000000000ACB000-memory.dmp themida behavioral1/memory/4400-2-0x0000000000400000-0x0000000000ACB000-memory.dmp themida behavioral1/memory/4400-4-0x0000000000400000-0x0000000000ACB000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA nkt_loader.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4400 nkt_loader.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 nkt_loader.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4400 nkt_loader.exe 4400 nkt_loader.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\nkt_loader.exe"C:\Users\Admin\AppData\Local\Temp\nkt_loader.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4400