Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 19:25
Behavioral task
behavioral1
Sample
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe
Resource
win10v2004-20240426-en
General
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Target
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe
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Size
1.6MB
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MD5
00f33aeca32a3cd0124e7c2fdaca3df4
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SHA1
bf3bd6d7ef50aec7e9a47c6cbeaabc6baf2407b3
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SHA256
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e
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SHA512
51a3f8f6c19d2b2822ee640556a1840545e6de8e525346ce7c250bc57f0736f129a2bf8cd1bcde47e07722d128d1476c43dfa603c92225c64abcb3f119e90f5a
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SSDEEP
24576:MgUlR6LReTNZJFwrJtt/IU36AtiE/DzkTLb3l9vd2Kms43R05k0KR5YPIWSwM:67690wrTZN36g76LT2P05kPYCwM
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:
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.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.exe28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.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 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe -
Executes dropped EXE 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid process 2504 explorku.exe 1344 explorku.exe 3880 explorku.exe -
Processes:
resource yara_rule behavioral1/memory/3108-0-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-1-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-2-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-6-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-7-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-4-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-5-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-3-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/3108-8-0x0000000000790000-0x0000000000C8D000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral1/memory/3108-21-0x0000000000790000-0x0000000000C8D000-memory.dmp themida behavioral1/memory/2504-23-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-25-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-24-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-22-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-26-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-28-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-29-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-27-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-30-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/2504-31-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-36-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-39-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-38-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-37-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-43-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-44-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-42-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-41-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-40-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/1344-45-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-53-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-55-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-54-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-56-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-58-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-59-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-57-0x0000000000CA0000-0x000000000119D000-memory.dmp themida behavioral1/memory/3880-61-0x0000000000CA0000-0x000000000119D000-memory.dmp themida -
Processes:
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.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:
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exedescription ioc process File created C:\Windows\Tasks\explorku.job 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.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:
28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exedescription pid process target process PID 3108 wrote to memory of 2504 3108 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe explorku.exe PID 3108 wrote to memory of 2504 3108 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe explorku.exe PID 3108 wrote to memory of 2504 3108 28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe"C:\Users\Admin\AppData\Local\Temp\28b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- 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
1.6MB
MD500f33aeca32a3cd0124e7c2fdaca3df4
SHA1bf3bd6d7ef50aec7e9a47c6cbeaabc6baf2407b3
SHA25628b24c50af0a130e1bdfd0c6f2ea1ffc2253d9fd678f90db170c63d31b1ca74e
SHA51251a3f8f6c19d2b2822ee640556a1840545e6de8e525346ce7c250bc57f0736f129a2bf8cd1bcde47e07722d128d1476c43dfa603c92225c64abcb3f119e90f5a
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memory/1344-42-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-44-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-45-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-40-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-41-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-36-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-43-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-37-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-38-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/1344-39-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-23-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-30-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-24-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-22-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-26-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-28-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-29-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-27-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-31-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/2504-25-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3108-8-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-6-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-2-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-1-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-3-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-5-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-0-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-4-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-7-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3108-21-0x0000000000790000-0x0000000000C8D000-memory.dmpFilesize
5.0MB
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memory/3880-53-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-55-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-54-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-56-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-58-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-59-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-57-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB
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memory/3880-61-0x0000000000CA0000-0x000000000119D000-memory.dmpFilesize
5.0MB