Analysis
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max time kernel
146s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 15:22
Behavioral task
behavioral1
Sample
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe
Resource
win10v2004-20240508-en
General
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Target
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe
-
Size
1.7MB
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MD5
0e5490121c872450c3b2da57a3196abf
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SHA1
930d5fce18ea3ec714bf7626d497104ea3fbd56c
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SHA256
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879
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SHA512
a59f0dcb4ef5e09bf4f38a6207f4033a3fab79a50350cb6a8f722a63a49cc7e6b60c6007a5c85ba36ce821fb51c7de4ded3049d21ab105e6a91467bca61614b7
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SSDEEP
49152:V7ZizDzZr/g0IAngw8AdRxmD6z2y5hu9w9M6PVRw:NQz/l/gBYRxP/+9w9lVRw
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.exe39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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 10 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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\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\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 4 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exeexplorku.exepid process 3168 explorku.exe 1928 explorku.exe 1492 explorku.exe 4184 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/2088-0-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-3-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-1-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-6-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-5-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-4-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-2-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-7-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/2088-8-0x0000000000A40000-0x0000000000F81000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/2088-21-0x0000000000A40000-0x0000000000F81000-memory.dmp themida behavioral2/memory/3168-25-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-30-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-29-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-28-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-24-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-23-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-22-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-27-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-26-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-33-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-34-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-37-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-40-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-39-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-36-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-35-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-38-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-32-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1928-41-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/3168-42-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-50-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-52-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-55-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-53-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-51-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-49-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-54-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-56-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/1492-58-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-66-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-69-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-73-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-72-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-71-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-70-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-67-0x0000000000D10000-0x0000000001251000-memory.dmp themida behavioral2/memory/4184-74-0x0000000000D10000-0x0000000001251000-memory.dmp themida -
Processes:
explorku.exe39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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:
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exedescription ioc process File created C:\Windows\Tasks\explorku.job 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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:
39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exedescription pid process target process PID 2088 wrote to memory of 3168 2088 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe explorku.exe PID 2088 wrote to memory of 3168 2088 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe explorku.exe PID 2088 wrote to memory of 3168 2088 39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.exe"C:\Users\Admin\AppData\Local\Temp\39225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879.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
1.7MB
MD50e5490121c872450c3b2da57a3196abf
SHA1930d5fce18ea3ec714bf7626d497104ea3fbd56c
SHA25639225dd77b49b17fa99ac2038a0cb39bd89f6b2b6469f939b321868850922879
SHA512a59f0dcb4ef5e09bf4f38a6207f4033a3fab79a50350cb6a8f722a63a49cc7e6b60c6007a5c85ba36ce821fb51c7de4ded3049d21ab105e6a91467bca61614b7
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memory/1492-50-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-58-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-56-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-54-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-49-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-51-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-53-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-55-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1492-52-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-39-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-41-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-32-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-38-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-35-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-36-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-40-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-37-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-34-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/1928-33-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/2088-21-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-3-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-1-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-6-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-0-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-5-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
-
memory/2088-4-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
-
memory/2088-2-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/2088-7-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
-
memory/2088-8-0x0000000000A40000-0x0000000000F81000-memory.dmpFilesize
5.3MB
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memory/3168-29-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-27-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-25-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-30-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-26-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-28-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/3168-24-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/3168-23-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/3168-22-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/3168-42-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/4184-66-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-69-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-73-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-72-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-71-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-70-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
-
memory/4184-67-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB
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memory/4184-74-0x0000000000D10000-0x0000000001251000-memory.dmpFilesize
5.3MB