Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
21-05-2024 15:47
Behavioral task
behavioral1
Sample
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe
Resource
win10v2004-20240508-en
General
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Target
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe
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Size
1.7MB
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MD5
55722ad0acfcb5e80da700a4272804a8
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SHA1
719c93f8c80a9d5ea07c5ef6539b99a07e61eaf1
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SHA256
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413
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SHA512
eee358c3705fb21feda57d919a5cd78b9a56704b70db6ecc7dbbebde94aa97673c3ef0d0e763713394a1966707d9e6ca7dc039f48498c8f8b5aba1a287ff7c41
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SSDEEP
49152:M2tlbo3vG7K+c+yOxd88gIxMAdIG9eG0YJ4Kc5Y:M2tlkv9+Sh8xtdIG824KR
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:
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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 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:
explorku.exe7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exeexplorku.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 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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 explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe -
Executes dropped EXE 4 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exeexplorku.exepid process 1732 explorku.exe 400 explorku.exe 3040 explorku.exe 2252 explorku.exe -
Processes:
resource yara_rule behavioral1/memory/4020-0-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-1-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-3-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-2-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-7-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-8-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-6-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-5-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/4020-4-0x0000000000E50000-0x0000000001394000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral1/memory/4020-21-0x0000000000E50000-0x0000000001394000-memory.dmp themida behavioral1/memory/1732-22-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-27-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-29-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-28-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-26-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-30-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-25-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-24-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-23-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-34-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-35-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-36-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-37-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-38-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-32-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/1732-33-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-40-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-41-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-39-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/400-42-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-51-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-52-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-56-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-55-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-54-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-50-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-53-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/3040-58-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-68-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-71-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-72-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-70-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-69-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-67-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-66-0x0000000000AE0000-0x0000000001024000-memory.dmp themida behavioral1/memory/2252-74-0x0000000000AE0000-0x0000000001024000-memory.dmp themida -
Processes:
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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:
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exedescription ioc process File created C:\Windows\Tasks\explorku.job 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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:
7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exedescription pid process target process PID 4020 wrote to memory of 1732 4020 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe explorku.exe PID 4020 wrote to memory of 1732 4020 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe explorku.exe PID 4020 wrote to memory of 1732 4020 7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.exe"C:\Users\Admin\AppData\Local\Temp\7411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413.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
PID:4020 -
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:1732
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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:400
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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:3040
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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:2252
Network
MITRE ATT&CK Enterprise v15
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Downloads
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Filesize
1.7MB
MD555722ad0acfcb5e80da700a4272804a8
SHA1719c93f8c80a9d5ea07c5ef6539b99a07e61eaf1
SHA2567411d3399b9c2f589942eecffa11d2ef76b5cce4154918de41107a02d3cf7413
SHA512eee358c3705fb21feda57d919a5cd78b9a56704b70db6ecc7dbbebde94aa97673c3ef0d0e763713394a1966707d9e6ca7dc039f48498c8f8b5aba1a287ff7c41