Analysis
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max time kernel
143s -
max time network
94s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 06:34
Behavioral task
behavioral1
Sample
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe
Resource
win10v2004-20240508-en
General
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Target
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe
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Size
1.6MB
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MD5
6e7509886f8664d045b09398f1e4b2be
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SHA1
2b93a153ba5d452ebbb717015f9cc1512b1dba84
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SHA256
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a
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SHA512
613b06828fe6f8e0a0326725998936b2d463a2f151ee8ba33e45722c7ecb3fec00f5dda01cf08dd91ce4c3c6755e474cb3cb75e7b53be727249c19be326de2d9
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SSDEEP
49152:lK85HlR16qS4w8VJzJtXgdLd+Gd7cYTEA:b16lZULlYTEA
Malware Config
Extracted
amadey
4.20
18befc
http://5.42.96.141
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install_dir
908f070dff
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install_file
explorku.exe
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strings_key
b25a9385246248a95c600f9a061438e1
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url_paths
/go34ko8/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
Processes:
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe -
Checks BIOS information in registry 2 TTPs 10 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorku.exeexplorku.exeexplorku.exe2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe -
Executes dropped EXE 4 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exeexplorku.exepid process 2768 explorku.exe 4456 explorku.exe 4956 explorku.exe 4052 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/4976-0-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-1-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-3-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-7-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-8-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-6-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-5-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-2-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/4976-4-0x0000000000ED0000-0x000000000140B000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/4976-21-0x0000000000ED0000-0x000000000140B000-memory.dmp themida behavioral2/memory/2768-20-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-24-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-25-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-29-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-28-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-27-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-26-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-23-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-30-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-33-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-32-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-34-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-38-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-39-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-37-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-35-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-36-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4456-40-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/2768-41-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-49-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-51-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-50-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-53-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-54-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-52-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-48-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-55-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4956-57-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-65-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-70-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-67-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-66-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-71-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-72-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-69-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-68-0x0000000000780000-0x0000000000CBB000-memory.dmp themida behavioral2/memory/4052-74-0x0000000000780000-0x0000000000CBB000-memory.dmp themida -
Processes:
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe -
Drops file in Windows directory 1 IoCs
Processes:
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exedescription ioc process File created C:\Windows\Tasks\explorku.job 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes:
2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exedescription pid process target process PID 4976 wrote to memory of 2768 4976 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe explorku.exe PID 4976 wrote to memory of 2768 4976 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe explorku.exe PID 4976 wrote to memory of 2768 4976 2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe"C:\Users\Admin\AppData\Local\Temp\2fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:2768
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4456
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4956
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4052
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD56e7509886f8664d045b09398f1e4b2be
SHA12b93a153ba5d452ebbb717015f9cc1512b1dba84
SHA2562fab011378c2afbf4ece666058049c2bffcde77dddf420f661599d2b7613465a
SHA512613b06828fe6f8e0a0326725998936b2d463a2f151ee8ba33e45722c7ecb3fec00f5dda01cf08dd91ce4c3c6755e474cb3cb75e7b53be727249c19be326de2d9