Analysis
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max time kernel
149s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 07:48
Behavioral task
behavioral1
Sample
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe
Resource
win10v2004-20240426-en
General
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Target
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe
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Size
1.7MB
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MD5
fef0d3ecc639b64c2fab02895f4a73bb
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SHA1
60c025eaa4a0fa90b21b105b6d65508cc208e0d9
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SHA256
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1
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SHA512
58732f4b1143bf9c536fa4d5400402ce5a66d0852ba7e745c95055e992d398a49c70f7ef375fbe8daa65fdd4602fe480b73a1383f9ea8f30ec0adfc7de7374a2
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SSDEEP
49152:16/udBwaO/4rnK9HfBqo8/xOCqlB4QB+QVTq:16GdBwtknK9sNxZMB4Fd
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.exeae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exeexplorku.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__ ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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:
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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 104 explorku.exe 2400 explorku.exe 3156 explorku.exe 1680 explorku.exe -
Processes:
resource yara_rule behavioral2/memory/2928-0-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-2-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-1-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-3-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-5-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-8-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-6-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-4-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/2928-7-0x0000000000F00000-0x0000000001450000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral2/memory/2928-21-0x0000000000F00000-0x0000000001450000-memory.dmp themida behavioral2/memory/104-29-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-28-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-27-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-26-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-25-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-23-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-24-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-22-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-30-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/104-31-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-34-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-35-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-37-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-41-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-40-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-38-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-39-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-36-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-42-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/2400-44-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-54-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-55-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-57-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-58-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-59-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-56-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-53-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-52-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/3156-60-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-70-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-73-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-72-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-71-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-68-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-69-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-74-0x00000000000C0000-0x0000000000610000-memory.dmp themida behavioral2/memory/1680-75-0x00000000000C0000-0x0000000000610000-memory.dmp themida -
Processes:
explorku.exeexplorku.exeae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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 explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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:
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exedescription ioc process File created C:\Windows\Tasks\explorku.job ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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:
ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exedescription pid process target process PID 2928 wrote to memory of 104 2928 ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe explorku.exe PID 2928 wrote to memory of 104 2928 ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe explorku.exe PID 2928 wrote to memory of 104 2928 ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.exe"C:\Users\Admin\AppData\Local\Temp\ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1.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
MD5fef0d3ecc639b64c2fab02895f4a73bb
SHA160c025eaa4a0fa90b21b105b6d65508cc208e0d9
SHA256ae1633171bd78723b05ac3f16dc1873090b639f3718ca6e68593c58350a021e1
SHA51258732f4b1143bf9c536fa4d5400402ce5a66d0852ba7e745c95055e992d398a49c70f7ef375fbe8daa65fdd4602fe480b73a1383f9ea8f30ec0adfc7de7374a2
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memory/104-29-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-22-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-24-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-23-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-30-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-25-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-26-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-27-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-28-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/104-31-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-68-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-70-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-73-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-72-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-71-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-69-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-74-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/1680-75-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-41-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-42-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-34-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-35-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-37-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-44-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-40-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-38-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
-
memory/2400-39-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2400-36-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/2928-4-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-7-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-2-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-1-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-3-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
-
memory/2928-0-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-5-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-8-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-6-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/2928-21-0x0000000000F00000-0x0000000001450000-memory.dmpFilesize
5.3MB
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memory/3156-58-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-60-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-52-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-53-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-56-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-59-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
-
memory/3156-57-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-55-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB
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memory/3156-54-0x00000000000C0000-0x0000000000610000-memory.dmpFilesize
5.3MB