Analysis
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max time kernel
142s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
21-05-2024 18:16
Behavioral task
behavioral1
Sample
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe
Resource
win10v2004-20240426-en
General
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Target
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe
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Size
1.7MB
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MD5
6f04242fe608629caa797126e1a1f06c
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SHA1
67dc1e8443603737bfd38b8ede17cfed8a06f4ab
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SHA256
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386
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SHA512
20495db67dc5f6a25f1dd02f58e49750e4ac55fed4162e1f81dbb54b7769efa21ee93f293f194319880a829142bbb758431f39169edd6306b0c409b7e67ae378
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SSDEEP
49152:Vk6ZoTERvptZRpvzApRHLwdoOuVtMNQG+UL2WwKlfRpun:agAElfrFzApK+OWfULBffRpun
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 4 IoCs
Processes:
explorku.exeexplorku.exe58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exeexplorku.exedescription ioc process 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__ 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.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.exeexplorku.exe58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exeexplorku.exedescription ioc process 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 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.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 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid process 2720 explorku.exe 4280 explorku.exe 2228 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/3436-0-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-3-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-5-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-7-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-4-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-2-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-1-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/3436-6-0x0000000000BF0000-0x000000000113A000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/2720-23-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/3436-18-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/2720-26-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-25-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-27-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-24-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-22-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-21-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-20-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2720-28-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/3436-30-0x0000000000BF0000-0x000000000113A000-memory.dmp themida behavioral2/memory/4280-35-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-37-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-38-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-41-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-40-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-39-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-36-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-42-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/4280-43-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-52-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-53-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-54-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-56-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-55-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-51-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-57-0x0000000000FF0000-0x000000000153A000-memory.dmp themida behavioral2/memory/2228-59-0x0000000000FF0000-0x000000000153A000-memory.dmp themida -
Processes:
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.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:
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exedescription ioc process File created C:\Windows\Tasks\explorku.job 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.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:
58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exedescription pid process target process PID 3436 wrote to memory of 2720 3436 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe explorku.exe PID 3436 wrote to memory of 2720 3436 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe explorku.exe PID 3436 wrote to memory of 2720 3436 58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.exe"C:\Users\Admin\AppData\Local\Temp\58ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386.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
MD56f04242fe608629caa797126e1a1f06c
SHA167dc1e8443603737bfd38b8ede17cfed8a06f4ab
SHA25658ceac5179a2a39101c8ba12e1aa127c9ed2d2af43689aba79bffaa4ae9d9386
SHA51220495db67dc5f6a25f1dd02f58e49750e4ac55fed4162e1f81dbb54b7769efa21ee93f293f194319880a829142bbb758431f39169edd6306b0c409b7e67ae378
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memory/2228-52-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-59-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-57-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-51-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-55-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-56-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-54-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2228-53-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-28-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-23-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-26-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-25-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-27-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-24-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-22-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-21-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/2720-20-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/3436-0-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-30-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-3-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-5-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-18-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-7-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-4-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-2-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-1-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/3436-6-0x0000000000BF0000-0x000000000113A000-memory.dmpFilesize
5.3MB
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memory/4280-38-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-43-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-42-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-36-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-39-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-40-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-41-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-37-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB
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memory/4280-35-0x0000000000FF0000-0x000000000153A000-memory.dmpFilesize
5.3MB