Analysis
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max time kernel
16s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
20-11-2024 12:50
Static task
static1
Behavioral task
behavioral1
Sample
a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe
Resource
win7-20240729-en
General
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Target
a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe
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Size
2.0MB
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MD5
87277a0d994ac32ad7face28aa20af74
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SHA1
9ab1a409fd2de2d0b92b039a935e5ad82dec312e
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SHA256
a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e
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SHA512
802af869d04d60ae57d51ee714182a2f5ec6fd433aceb7b9bc177378bc92ae362f0dbcbe8f00bf4119498b26ead52e672257dca7b6b33ea75fb125981b640e99
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SSDEEP
49152:91WlPp91QzU47srSc7gupSbMP62QMnmSXKgwgSwcKavk1d:9AlP1QI47QTbSSrlnmCKg8n3Wd
Malware Config
Extracted
stealc
tale
http://185.215.113.206
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url_path
/6c4adf523b719729.php
Signatures
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Stealc family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Deletes itself 1 IoCs
pid Process 2876 cmd.exe -
Identifies Wine through registry keys 2 TTPs 1 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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Loads dropped DLL 1 IoCs
pid Process 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2888 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1520 wrote to memory of 2876 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe 30 PID 1520 wrote to memory of 2876 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe 30 PID 1520 wrote to memory of 2876 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe 30 PID 1520 wrote to memory of 2876 1520 a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe 30 PID 2876 wrote to memory of 2888 2876 cmd.exe 32 PID 2876 wrote to memory of 2888 2876 cmd.exe 32 PID 2876 wrote to memory of 2888 2876 cmd.exe 32 PID 2876 wrote to memory of 2888 2876 cmd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe"C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1520 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2888
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
676KB
MD5eda18948a989176f4eebb175ce806255
SHA1ff22a3d5f5fb705137f233c36622c79eab995897
SHA25681a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
SHA512160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85