Analysis
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max time kernel
143s -
max time network
114s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
14-05-2024 10:28
Behavioral task
behavioral1
Sample
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe
Resource
win10v2004-20240426-en
General
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Target
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe
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Size
1.7MB
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MD5
fb7340addbdf16157febe06c00d39641
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SHA1
24a9c1e19de21286e8e247c98f7edb1f7c7d6fde
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SHA256
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305
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SHA512
9606a6b5d3ba933f63d7d389d0193f184df38651f736dc30afac5fef3e47eeff0b207e9410a157748568acaee0035006dc03801b54ecc34cf01f775ed8440fa0
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SSDEEP
49152:zqjxF2HylFHm+pZxg+pp23zrG40Ohw04X4/RtmRD:OjxF2Yhm+jE/N0OhI4/roD
Malware Config
Extracted
amadey
4.20
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 4 IoCs
Processes:
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.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 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorku.exe3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exeexplorku.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 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.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 -
Executes dropped EXE 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid process 2808 explorku.exe 1936 explorku.exe 1452 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/4368-0-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-6-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-7-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-5-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-4-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-3-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-1-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/4368-2-0x0000000000280000-0x00000000007CC000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/4368-18-0x0000000000280000-0x00000000007CC000-memory.dmp themida behavioral2/memory/2808-23-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-27-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-28-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-26-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-25-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-24-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-22-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-20-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/2808-29-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-35-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-33-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-34-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-37-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-39-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-36-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-38-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1936-41-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-49-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-50-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-55-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-54-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-53-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-51-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-52-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-56-0x00000000002D0000-0x000000000081C000-memory.dmp themida behavioral2/memory/1452-57-0x00000000002D0000-0x000000000081C000-memory.dmp themida -
Processes:
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.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:
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exedescription ioc process File created C:\Windows\Tasks\explorku.job 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.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:
3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exedescription pid process target process PID 4368 wrote to memory of 2808 4368 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe explorku.exe PID 4368 wrote to memory of 2808 4368 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe explorku.exe PID 4368 wrote to memory of 2808 4368 3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.exe"C:\Users\Admin\AppData\Local\Temp\3c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305.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
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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
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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
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeFilesize
1.7MB
MD5fb7340addbdf16157febe06c00d39641
SHA124a9c1e19de21286e8e247c98f7edb1f7c7d6fde
SHA2563c49c4b49a70a6a22dc7d77b536e3dca0778cbeb6591f229ceb0f8b081195305
SHA5129606a6b5d3ba933f63d7d389d0193f184df38651f736dc30afac5fef3e47eeff0b207e9410a157748568acaee0035006dc03801b54ecc34cf01f775ed8440fa0
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memory/1452-51-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-53-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-50-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-57-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-49-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-54-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-55-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-56-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1452-52-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-41-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-35-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-38-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-36-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-39-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-37-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-34-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/1936-33-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-29-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-23-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-20-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-22-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-24-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-25-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-26-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-28-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/2808-27-0x00000000002D0000-0x000000000081C000-memory.dmpFilesize
5.3MB
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memory/4368-0-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-18-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-2-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-1-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-3-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-4-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-5-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-7-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB
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memory/4368-6-0x0000000000280000-0x00000000007CC000-memory.dmpFilesize
5.3MB