Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
12-05-2024 03:23
Static task
static1
Behavioral task
behavioral1
Sample
9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe
Resource
win10v2004-20240508-en
General
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Target
9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe
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Size
1.8MB
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MD5
0f3344f8856139904bae4484ea814899
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SHA1
b338094c5a51749864206e8bf9cfdb0c745aa130
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SHA256
9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0
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SHA512
a1b1c60d66e019ab0a2cc16c3a5310d6862509af00a66fbe98e759a92a9c96ea33cbede917d2520721ee4572a43ba77c6aa590240efed4082795d5f726b632c7
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SSDEEP
49152:hX5NYLAc6bJ7o8y+fkradfhSs7lczC21hm98:hQLAnbJcD+fD1YsR52V
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 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.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 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\SystemBiosVersion 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe -
Executes dropped EXE 3 IoCs
pid Process 3672 explorku.exe 400 explorku.exe 1796 explorku.exe -
Identifies Wine through registry keys 2 TTPs 4 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Wine explorku.exe Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Wine 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Wine explorku.exe Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Wine explorku.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 3672 explorku.exe 400 explorku.exe 1796 explorku.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorku.job 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 3672 explorku.exe 3672 explorku.exe 400 explorku.exe 400 explorku.exe 1796 explorku.exe 1796 explorku.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1144 wrote to memory of 3672 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 85 PID 1144 wrote to memory of 3672 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 85 PID 1144 wrote to memory of 3672 1144 9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe"C:\Users\Admin\AppData\Local\Temp\9517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1144 -
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
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3672
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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
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:400
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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
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1796
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD50f3344f8856139904bae4484ea814899
SHA1b338094c5a51749864206e8bf9cfdb0c745aa130
SHA2569517a9f220267eef1606ca58a1e79277ba7fa3b74c9561e1671715b6d990dab0
SHA512a1b1c60d66e019ab0a2cc16c3a5310d6862509af00a66fbe98e759a92a9c96ea33cbede917d2520721ee4572a43ba77c6aa590240efed4082795d5f726b632c7