Analysis
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max time kernel
146s -
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 19:42
Behavioral task
behavioral1
Sample
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe
Resource
win7-20240215-en
General
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Target
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe
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Size
1.7MB
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MD5
411736c06615c0d8e04dd297af8ba3ea
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SHA1
b3f6bb5dd84937e81c1f11b88c9807bd0acff2e6
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SHA256
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2
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SHA512
8be401015d93bbae6cf142b0c7802b01e3988afa3013703c5e265d1664a3431358dee776b6e98f28cd06752a2c68043587b64c78e8732961602b1d6ef9f8920c
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SSDEEP
49152:OEyHKpZCJXK5Obh10cWYzsxLuKLJPcSIFci0nZ9cyHb:Ojsr6h/bzqL5NNivyZmSb
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:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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.exec805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe -
Executes dropped EXE 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid process 4632 explorku.exe 4432 explorku.exe 2512 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/2732-3-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-2-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-6-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-5-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-1-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-0-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-4-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/2732-7-0x0000000000F30000-0x0000000001474000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/2732-20-0x0000000000F30000-0x0000000001474000-memory.dmp themida behavioral2/memory/4632-21-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-23-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-24-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-22-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-25-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-27-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-26-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-28-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4632-29-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-35-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-38-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-41-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-40-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-39-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-37-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-36-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-34-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/4432-43-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-50-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-55-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-51-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-58-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-57-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-56-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-54-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-53-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida behavioral2/memory/2512-60-0x0000000000EB0000-0x00000000013F4000-memory.dmp themida -
Processes:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exedescription ioc process File created C:\Windows\Tasks\explorku.job c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exedescription pid process target process PID 2732 wrote to memory of 4632 2732 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe explorku.exe PID 2732 wrote to memory of 4632 2732 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe explorku.exe PID 2732 wrote to memory of 4632 2732 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe"C:\Users\Admin\AppData\Local\Temp\c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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:2732 -
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:4632
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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:4432
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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:2512
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.7MB
MD5411736c06615c0d8e04dd297af8ba3ea
SHA1b3f6bb5dd84937e81c1f11b88c9807bd0acff2e6
SHA256c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2
SHA5128be401015d93bbae6cf142b0c7802b01e3988afa3013703c5e265d1664a3431358dee776b6e98f28cd06752a2c68043587b64c78e8732961602b1d6ef9f8920c