Analysis
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max time kernel
146s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 01:28
Behavioral task
behavioral1
Sample
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe
Resource
win10v2004-20240508-en
General
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Target
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe
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Size
1.6MB
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MD5
f94ae987190bc341138b2ee64dfa9aa4
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SHA1
614c9d14ee48b3cca90c417b7b80d0bbf3334e75
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SHA256
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c
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SHA512
4f4229d08a05b74ac3ba517cc68e503bc4966d77e0a6c5c83943ae803320d5b9cd40f3cfdf47ac543123f288f634fe3ae984f012637c60a9248060affaf64435
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SSDEEP
24576:Qfw/HhjQy+UCSNJjsH0rxWBzSk7xrZdJmpfDPnE4/DJxU9n7j9hPChcMEjKyBdBC:Q4/HIUNZblkSKnbwfDnZ7Jx47j9hGok
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:
explorku.exeexplorku.exed706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exeexplorku.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__ d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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:
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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 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\SystemBiosVersion d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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 2764 explorku.exe 5044 explorku.exe 2552 explorku.exe 2820 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/1032-0-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-3-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-2-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-1-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-4-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-6-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-5-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/1032-7-0x00000000009F0000-0x0000000000F27000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/2764-21-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/1032-20-0x00000000009F0000-0x0000000000F27000-memory.dmp themida behavioral2/memory/2764-22-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-23-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-26-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-28-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-27-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-24-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-25-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-30-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-32-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-33-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-37-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-36-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-34-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-35-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-31-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/5044-38-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2764-39-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-46-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-49-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-48-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-53-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-52-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-50-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-51-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-47-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2552-54-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-65-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-64-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-63-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-62-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-68-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-69-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-67-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-66-0x0000000000820000-0x0000000000D57000-memory.dmp themida behavioral2/memory/2820-71-0x0000000000820000-0x0000000000D57000-memory.dmp themida -
Processes:
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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:
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exedescription ioc process File created C:\Windows\Tasks\explorku.job d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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:
d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exedescription pid process target process PID 1032 wrote to memory of 2764 1032 d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe explorku.exe PID 1032 wrote to memory of 2764 1032 d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe explorku.exe PID 1032 wrote to memory of 2764 1032 d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.exe"C:\Users\Admin\AppData\Local\Temp\d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c.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
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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
1.6MB
MD5f94ae987190bc341138b2ee64dfa9aa4
SHA1614c9d14ee48b3cca90c417b7b80d0bbf3334e75
SHA256d706af0f74077d36aed919e9346e7f023077a80ea0150e7789faf1db7101e60c
SHA5124f4229d08a05b74ac3ba517cc68e503bc4966d77e0a6c5c83943ae803320d5b9cd40f3cfdf47ac543123f288f634fe3ae984f012637c60a9248060affaf64435
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memory/1032-4-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-1-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-20-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-0-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-6-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-5-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-7-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-3-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/1032-2-0x00000000009F0000-0x0000000000F27000-memory.dmpFilesize
5.2MB
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memory/2552-49-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-46-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-47-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-51-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-50-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-52-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-53-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-48-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2552-54-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-22-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-25-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-21-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-23-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-26-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-28-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-27-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-24-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2764-39-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-64-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-68-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-71-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-66-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-67-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-69-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-62-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-63-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/2820-65-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-37-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-33-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-36-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-34-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-30-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-35-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-31-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-38-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB
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memory/5044-32-0x0000000000820000-0x0000000000D57000-memory.dmpFilesize
5.2MB