Analysis
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max time kernel
143s -
max time network
115s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 03:10
Behavioral task
behavioral1
Sample
fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe
Resource
win10v2004-20240508-en
General
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Target
fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe
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Size
1.7MB
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MD5
eee78c7a48b5de33d2253e4874c57e89
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SHA1
9ac2bf925546e623b4453232b96de8e40c992c2c
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SHA256
fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3
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SHA512
b60a25acf513de45e6d0f60d01902cba93afad39adaecab8fbd38cea0cac2cfc866f1179a135186e2df5d496afbea3ee2cfe5f9d3ba1584e083c1c9d41074916
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SSDEEP
49152:cY3amfNQFSoZ/yf6RJB8ImDuFsxg5QQU+Q5s:cijNoSoRyf+JB8HD2szgQ+
Malware Config
Extracted
amadey
4.20
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
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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.
description ioc Process 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 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 fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe -
Executes dropped EXE 4 IoCs
pid Process 4984 explorku.exe 3464 explorku.exe 4416 explorku.exe 4660 explorku.exe -
resource yara_rule behavioral1/memory/1644-0-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-2-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-1-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-6-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-7-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-5-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-3-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/1644-4-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/files/0x0007000000023411-13.dat themida behavioral1/memory/4984-23-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-25-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-28-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-27-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-26-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-22-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-21-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/1644-20-0x0000000000050000-0x000000000059D000-memory.dmp themida behavioral1/memory/4984-24-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-30-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-35-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-37-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-36-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-34-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-32-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-33-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-31-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/3464-39-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4984-40-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-47-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-52-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-53-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-51-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-50-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-48-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-54-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4416-56-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-64-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-67-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-66-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-65-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-69-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-71-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-70-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-68-0x0000000000140000-0x000000000068D000-memory.dmp themida behavioral1/memory/4660-72-0x0000000000140000-0x000000000068D000-memory.dmp themida -
description 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 fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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
description ioc Process File created C:\Windows\Tasks\explorku.job fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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
description pid Process procid_target PID 1644 wrote to memory of 4984 1644 fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe 85 PID 1644 wrote to memory of 4984 1644 fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe 85 PID 1644 wrote to memory of 4984 1644 fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe"C:\Users\Admin\AppData\Local\Temp\fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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:1644 -
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:4984
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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:3464
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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:4416
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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:4660
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.7MB
MD5eee78c7a48b5de33d2253e4874c57e89
SHA19ac2bf925546e623b4453232b96de8e40c992c2c
SHA256fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3
SHA512b60a25acf513de45e6d0f60d01902cba93afad39adaecab8fbd38cea0cac2cfc866f1179a135186e2df5d496afbea3ee2cfe5f9d3ba1584e083c1c9d41074916