Analysis
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max time kernel
93s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2024 05:37
Static task
static1
Behavioral task
behavioral1
Sample
7A4RB_file.exe
Resource
win7-20240729-en
General
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Target
7A4RB_file.exe
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Size
1.8MB
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MD5
33a7b673dc34efe24c0c02b751813661
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SHA1
42803e38d618f824ba68973c5ed02af38b65639a
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SHA256
168703f287c488a394f2d499dc9ef9e7af7e622901e749bfdd66803008193c08
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SHA512
8a80e8581e4005da760550044221877e583c8aa39ef4b70cf21971d72fed6359306a5d9a0905272aec549cb879f1197c71bcd7bd9aa6b82cfc260a3ecce6df28
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SSDEEP
49152:i3Rjdf2/+esLGLhM20NarRm/ZH8tK5Q8I5W5qMs1aU+CVo:i3Rjdu2hyqTaVmxeKKSYXXFo
Malware Config
Extracted
stealc
drum
http://185.215.113.206
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url_path
/c4becf79229cb002.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__ 7A4RB_file.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 7A4RB_file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 7A4RB_file.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine 7A4RB_file.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1236 7A4RB_file.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 7A4RB_file.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1236 7A4RB_file.exe 1236 7A4RB_file.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7A4RB_file.exe"C:\Users\Admin\AppData\Local\Temp\7A4RB_file.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1236