Analysis
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max time kernel
147s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 16:54
Behavioral task
behavioral1
Sample
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe
Resource
win10v2004-20240226-en
General
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Target
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe
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Size
1.6MB
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MD5
c1e8ef98e5bf0e684aa3f87cda4c47d7
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SHA1
440d9a5445e7dc5473123eab18538a8d7377410f
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SHA256
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71
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SHA512
a5f998c45efd9ba293bf883363676a4acfa27122d233f65e58284a73746c75688746294edaa5d80468970bbf3dcc5233a64ef26113887df2404bd878f72444af
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SSDEEP
24576:A8dcvpe6pBgcWErP6c38GqjyBq1Dfu5mZJr9qeKc6VM2zOcRTEaP26xsveq3m:LevpVBgpErP6u8FqqpumzRdl6Vzz4aV3
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:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.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:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.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 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.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 explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe -
Executes dropped EXE 4 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exeexplorku.exepid process 4092 explorku.exe 4824 explorku.exe 4708 explorku.exe 3768 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/4904-0-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-2-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-4-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-5-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-6-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-7-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-3-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-1-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4904-8-0x0000000000F70000-0x00000000014AC000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/4092-23-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-24-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-28-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-30-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-29-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-27-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-26-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-25-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4904-22-0x0000000000F70000-0x00000000014AC000-memory.dmp themida behavioral2/memory/4092-20-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-32-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-34-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-36-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-40-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-39-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-38-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-37-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-35-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-33-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4824-41-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4092-42-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-50-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-51-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-54-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-55-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-53-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-52-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-49-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/4708-56-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-64-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-66-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-70-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-71-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-68-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-69-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-67-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-65-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida behavioral2/memory/3768-72-0x0000000000AC0000-0x0000000000FFC000-memory.dmp themida -
Processes:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.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:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exedescription ioc process File created C:\Windows\Tasks\explorku.job 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exepid process 4904 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exedescription pid process target process PID 4904 wrote to memory of 4092 4904 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe explorku.exe PID 4904 wrote to memory of 4092 4904 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe explorku.exe PID 4904 wrote to memory of 4092 4904 59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.exe"C:\Users\Admin\AppData\Local\Temp\59fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4904 -
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:4092
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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:4824
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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:4708
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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:3768
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5c1e8ef98e5bf0e684aa3f87cda4c47d7
SHA1440d9a5445e7dc5473123eab18538a8d7377410f
SHA25659fb0ab620a181cb33532812184a37d599f56d2b42df76395d61e3deaa503b71
SHA512a5f998c45efd9ba293bf883363676a4acfa27122d233f65e58284a73746c75688746294edaa5d80468970bbf3dcc5233a64ef26113887df2404bd878f72444af