Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-06-2024 09:52
Static task
static1
Behavioral task
behavioral1
Sample
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe
Resource
win10v2004-20240508-en
General
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Target
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe
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Size
1.8MB
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MD5
f2aef3b38d91c72afb681c5eded18a85
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SHA1
71a95ce0e1444c932aa36ddabfbe97e7acac439b
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SHA256
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390
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SHA512
39ef4596b7b56a3109f0194d35357c47a120a1a9710233b7b88424ffffb139ac9c5f9926c2f8efa1055ddb49af0bc9d52ca931f68c0209c3295d0c90899155d3
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SSDEEP
49152:Uj+xjXrmwxbqEFw8cOYMipy9A/EGvvXSqsB9kUAqLLK:Uj+xfmyHbdik943iqsXAyK
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
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exeexplortu.exeexplortu.exeexplortu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.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.
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exeexplortu.exeexplortu.exeexplortu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.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 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
Processes:
explortu.exeexplortu.exeexplortu.exepid process 4896 explortu.exe 4908 explortu.exe 4492 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.
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exeexplortu.exeexplortu.exeexplortu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Wine b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.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
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exeexplortu.exeexplortu.exeexplortu.exepid process 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe 4896 explortu.exe 4908 explortu.exe 4492 explortu.exe -
Drops file in Windows directory 1 IoCs
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exedescription ioc process File created C:\Windows\Tasks\explortu.job b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.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
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exeexplortu.exeexplortu.exeexplortu.exepid process 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe 4896 explortu.exe 4896 explortu.exe 4908 explortu.exe 4908 explortu.exe 4492 explortu.exe 4492 explortu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exedescription pid process target process PID 2936 wrote to memory of 4896 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe explortu.exe PID 2936 wrote to memory of 4896 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe explortu.exe PID 2936 wrote to memory of 4896 2936 b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe explortu.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.exe"C:\Users\Admin\AppData\Local\Temp\b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390.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:2936 -
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:4896
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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:4908
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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:4492
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5f2aef3b38d91c72afb681c5eded18a85
SHA171a95ce0e1444c932aa36ddabfbe97e7acac439b
SHA256b4ef618422c5c4f681a9bc1852cb04f03247bf9f86f1c6095f8485fdffde3390
SHA51239ef4596b7b56a3109f0194d35357c47a120a1a9710233b7b88424ffffb139ac9c5f9926c2f8efa1055ddb49af0bc9d52ca931f68c0209c3295d0c90899155d3