Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 13:08
Behavioral task
behavioral1
Sample
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe
Resource
win10v2004-20240508-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 5 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exec805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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__ c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.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.exeexplorku.exeexplorku.exec805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exeexplorku.exedescription ioc process 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 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\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 -
Executes dropped EXE 4 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exeexplorku.exepid process 1684 explorku.exe 3528 explorku.exe 3164 explorku.exe 2020 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/1316-1-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-3-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-2-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-0-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-6-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-5-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-4-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1316-7-0x00000000005F0000-0x0000000000B34000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/1684-22-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-23-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-24-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-26-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-25-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-28-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-20-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1316-19-0x00000000005F0000-0x0000000000B34000-memory.dmp themida behavioral2/memory/1684-27-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/1684-29-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-32-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-34-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-35-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-36-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-33-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-38-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-39-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-37-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3528-40-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-48-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-51-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-50-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-49-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-54-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-52-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-55-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-53-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/3164-57-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-65-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-66-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-71-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-69-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-68-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-70-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-67-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-72-0x0000000000E70000-0x00000000013B4000-memory.dmp themida behavioral2/memory/2020-74-0x0000000000E70000-0x00000000013B4000-memory.dmp themida -
Processes:
c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exeexplorku.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 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 1316 wrote to memory of 1684 1316 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe explorku.exe PID 1316 wrote to memory of 1684 1316 c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2.exe explorku.exe PID 1316 wrote to memory of 1684 1316 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 whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1316 -
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:1684
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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:3528
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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:3164
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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:2020
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.7MB
MD5411736c06615c0d8e04dd297af8ba3ea
SHA1b3f6bb5dd84937e81c1f11b88c9807bd0acff2e6
SHA256c805300b9951d5d26cf6b167cf5b5cb58d7bfc31721d62ccd9f81ba413cbbce2
SHA5128be401015d93bbae6cf142b0c7802b01e3988afa3013703c5e265d1664a3431358dee776b6e98f28cd06752a2c68043587b64c78e8732961602b1d6ef9f8920c