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Analysis
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max time kernel
143s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2024, 08:31
Behavioral task
behavioral1
Sample
0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe
Resource
win10v2004-20240508-en
General
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Target
0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe
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Size
1.8MB
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MD5
a63894cd5aceeab403385eb06e4fd6b0
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SHA1
3e4df142ac5f08bc72ce5d5177b3130407a8b785
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SHA256
0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281
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SHA512
2527822c56b492e3ded906dac902ad5f15b6a9ea859a5d90041ac6a6f33253980af1462268abc7d12683758cd66ac61d3a49f5eeb218cf827c730366307b122f
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SSDEEP
49152:N8ivcwEDsCh+vcKjzHfOUndIdW4l1Gwptp3:NcwEJhg3Ok2dWOp3
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
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.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 -
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 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe -
Executes dropped EXE 3 IoCs
pid Process 2028 explorku.exe 2280 explorku.exe 3336 explorku.exe -
resource yara_rule behavioral1/memory/3628-1-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-2-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-3-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-4-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-0-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-5-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-6-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/3628-7-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/files/0x0007000000023421-13.dat themida behavioral1/memory/3628-20-0x0000000000330000-0x0000000000890000-memory.dmp themida behavioral1/memory/2028-21-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-22-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-23-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-28-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-27-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-25-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-26-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-24-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2028-29-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-36-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-39-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-41-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-42-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-40-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-38-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-37-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-35-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/2280-44-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-53-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-55-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-59-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-58-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-57-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-56-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-54-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-52-0x0000000000310000-0x0000000000870000-memory.dmp themida behavioral1/memory/3336-60-0x0000000000310000-0x0000000000870000-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 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.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 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.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 3628 wrote to memory of 2028 3628 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe 87 PID 3628 wrote to memory of 2028 3628 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe 87 PID 3628 wrote to memory of 2028 3628 0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.exe"C:\Users\Admin\AppData\Local\Temp\0dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281.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:3628 -
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:2028
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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:2280
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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:3336
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5a63894cd5aceeab403385eb06e4fd6b0
SHA13e4df142ac5f08bc72ce5d5177b3130407a8b785
SHA2560dc81099a7d5ed3433254bd1db8f8deecc91af894890cff9577f72c25f49b281
SHA5122527822c56b492e3ded906dac902ad5f15b6a9ea859a5d90041ac6a6f33253980af1462268abc7d12683758cd66ac61d3a49f5eeb218cf827c730366307b122f