Analysis
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max time kernel
143s -
max time network
114s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 16:05
Behavioral task
behavioral1
Sample
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe
Resource
win10v2004-20240508-en
General
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Target
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe
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Size
1.7MB
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MD5
7effb02684f927f2ae5eff5890303863
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SHA1
7bc34e649ca7c1247fec7e101ff72587f491721f
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SHA256
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d
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SHA512
bbc93f2b32031a0ad3234ab29be6b8c09b0ae8e12f54ed375055b703d88651d3aa289bca8bfccc72fab18c73bd0b9a75cde298290acc088ae34892e721b2d71e
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SSDEEP
49152:79vyruFWJpjBe5E+cADWEcgkESP97UQfAQrn24:7gd/UE+cADhSHpx
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.exeexplorku.exe5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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:
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 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\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\VideoBiosVersion 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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 3940 explorku.exe 2088 explorku.exe 1776 explorku.exe 4472 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/4980-1-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-0-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-3-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-5-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-7-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-6-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-4-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/4980-2-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/files/0x000100000002a9d2-13.dat themida behavioral2/memory/3940-21-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4980-19-0x0000000000E40000-0x0000000001385000-memory.dmp themida behavioral2/memory/3940-26-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-28-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-27-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-25-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-24-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-22-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-23-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-32-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-36-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-37-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-35-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-34-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-33-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-31-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-30-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/2088-38-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/3940-39-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-48-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-50-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-52-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-51-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-49-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-47-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-46-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/1776-53-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-62-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-65-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-67-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-66-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-64-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-63-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-61-0x0000000000670000-0x0000000000BB5000-memory.dmp themida behavioral2/memory/4472-69-0x0000000000670000-0x0000000000BB5000-memory.dmp themida -
Processes:
explorku.exe5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exeexplorku.exeexplorku.exeexplorku.exedescription ioc Process 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 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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:
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exedescription ioc Process File created C:\Windows\Tasks\explorku.job 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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:
5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exedescription pid Process procid_target PID 4980 wrote to memory of 3940 4980 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe 81 PID 4980 wrote to memory of 3940 4980 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe 81 PID 4980 wrote to memory of 3940 4980 5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.exe"C:\Users\Admin\AppData\Local\Temp\5b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d.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
PID:4980 -
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:3940
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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:2088
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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:1776
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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:4472
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.7MB
MD57effb02684f927f2ae5eff5890303863
SHA17bc34e649ca7c1247fec7e101ff72587f491721f
SHA2565b750c122fd06716c3fb12b4b94e5e6bd0499a900ea8aac68ae2aa0ddce50a7d
SHA512bbc93f2b32031a0ad3234ab29be6b8c09b0ae8e12f54ed375055b703d88651d3aa289bca8bfccc72fab18c73bd0b9a75cde298290acc088ae34892e721b2d71e