Analysis
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max time kernel
142s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18-01-2025 17:10
Static task
static1
Behavioral task
behavioral1
Sample
FSFEK_random.exe
Resource
win7-20240903-en
General
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Target
FSFEK_random.exe
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Size
1.8MB
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MD5
2c780bd0b93d85afbad23124cf8994c2
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SHA1
267288b40a48cdb0aee1bcf8972f4e25ff72f4ff
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SHA256
96a1eea0f525785429d36cff82916e54227be6a3750796e05d594e952a213ec2
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SHA512
d2eb2bb12b7484a10f9517c2bb1f1095e5d234aedfa7730b9196e95b004d3db0fb79095a97d1643ee13db04b66f1718f9ab1a479e6fa97f811a6fb503b91bbe9
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SSDEEP
49152:He5+t/pl8vQaHskaf98eUfLvELLgsuS0QJt5:He5+tRao2skaV8eSLv2gXG
Malware Config
Extracted
amadey
4.42
9c9aa5
http://185.215.113.43
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install_dir
abc3bc1985
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install_file
skotes.exe
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strings_key
8a35cf2ea38c2817dba29a4b5b25dcf0
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url_paths
/Zu7JuNko/index.php
Signatures
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Amadey family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ skotes.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ FSFEK_random.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ skotes.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ skotes.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ skotes.exe -
Checks BIOS information in registry 2 TTPs 10 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion FSFEK_random.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion FSFEK_random.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion skotes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion skotes.exe -
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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation FSFEK_random.exe -
Executes dropped EXE 4 IoCs
pid Process 4524 skotes.exe 3548 skotes.exe 2600 skotes.exe 3004 skotes.exe -
Identifies Wine through registry keys 2 TTPs 5 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 skotes.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine skotes.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine skotes.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine skotes.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine FSFEK_random.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 880 FSFEK_random.exe 4524 skotes.exe 3548 skotes.exe 2600 skotes.exe 3004 skotes.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\skotes.job FSFEK_random.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 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 FSFEK_random.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language skotes.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 880 FSFEK_random.exe 880 FSFEK_random.exe 4524 skotes.exe 4524 skotes.exe 3548 skotes.exe 3548 skotes.exe 2600 skotes.exe 2600 skotes.exe 3004 skotes.exe 3004 skotes.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 880 wrote to memory of 4524 880 FSFEK_random.exe 84 PID 880 wrote to memory of 4524 880 FSFEK_random.exe 84 PID 880 wrote to memory of 4524 880 FSFEK_random.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\FSFEK_random.exe"C:\Users\Admin\AppData\Local\Temp\FSFEK_random.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:880 -
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4524
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C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exeC:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3548
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C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exeC:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2600
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C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exeC:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3004
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD52c780bd0b93d85afbad23124cf8994c2
SHA1267288b40a48cdb0aee1bcf8972f4e25ff72f4ff
SHA25696a1eea0f525785429d36cff82916e54227be6a3750796e05d594e952a213ec2
SHA512d2eb2bb12b7484a10f9517c2bb1f1095e5d234aedfa7730b9196e95b004d3db0fb79095a97d1643ee13db04b66f1718f9ab1a479e6fa97f811a6fb503b91bbe9