Analysis
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max time kernel
147s -
max time network
157s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-06-2024 10:03
Static task
static1
Behavioral task
behavioral1
Sample
ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe
Resource
win10v2004-20240611-en
General
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Target
ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe
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Size
1.8MB
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MD5
b6e930e692e05b5903e7b91240d5b53d
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SHA1
8395b37fd8da9eb9c4f2ea7283c197dd8c646caa
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SHA256
ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b
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SHA512
47776ef7314c6c0c15ad38a1bc512021c961746bc8dbb31f87d98e077687c12710ef3e96edc3494f3e8981e0bd4cb728dafc40baba5be9eb6fbffcdffacfea1f
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SSDEEP
49152:o1u1wtcSGAssdJAnf1gQxnmQ6E24nVdojiTfMr:o1c3AsgJCfZmlP4PrTfO
Malware Config
Extracted
amadey
4.21
0e6740
http://147.45.47.155
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install_dir
9217037dc9
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install_file
explortu.exe
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strings_key
8e894a8a4a3d0da8924003a561cfb244
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url_paths
/ku4Nor9/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__ ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.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 explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe -
Executes dropped EXE 3 IoCs
pid Process 4448 explortu.exe 3440 explortu.exe 3216 explortu.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-1-5-21-1672260578-815027929-964132517-1000\Software\Wine ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe Key opened \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Wine explortu.exe Key opened \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Wine explortu.exe Key opened \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Wine explortu.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 4448 explortu.exe 3440 explortu.exe 3216 explortu.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explortu.job ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.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 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 4448 explortu.exe 4448 explortu.exe 3440 explortu.exe 3440 explortu.exe 3216 explortu.exe 3216 explortu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4692 wrote to memory of 4448 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 78 PID 4692 wrote to memory of 4448 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 78 PID 4692 wrote to memory of 4448 4692 ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe"C:\Users\Admin\AppData\Local\Temp\ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4692 -
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:4448
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C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exeC:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:3440
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C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exeC:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:3216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5b6e930e692e05b5903e7b91240d5b53d
SHA18395b37fd8da9eb9c4f2ea7283c197dd8c646caa
SHA256ca528930aad08657fd84887928da7626b99ccbd4b1a5111e42d00d8d8513d93b
SHA51247776ef7314c6c0c15ad38a1bc512021c961746bc8dbb31f87d98e077687c12710ef3e96edc3494f3e8981e0bd4cb728dafc40baba5be9eb6fbffcdffacfea1f