Analysis
- max time kernel
121s - max time network
125s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system - submitted
16/02/2024, 17:02
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
explorgu.exe
Resource
win7-20231215-en
9 signatures
150 seconds
General
- Target explorgu.exe
- Size 1.8MB
- Sample240216-vj4kpsea36
- SHA256 45395e701819b1ca0bb6042764e166f72a5ae7e362dd5ad07174f519ee5155ac
- MD5 3a434422af5021b2087c85c315bad9ff
- SHA1 9a142957057ef7567e471652af8d45acfdfed2a3
- SHA512 7539f2533d8c8f1e391acd29a6734d4efd1883d8a6c9ba3edea3744442a7a75a062801ea770c23d0ec985366f60389165c62c41d15bafde78e90bf134d615181
- SSDEEP 49152:gJgXQXcdcniqzA+rk7wt1hrGUrzolsIEZmJ2YTtiZpSbm2kDkFn:6cuPzA+Q0xrC1oYccm2Oun
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
amadey
Version
-
4.17
C2
-
http://185.215.113.32
Attributes
-
install_dir
00c07260dc
-
install_file
explorgu.exe
-
strings_key
461809bd97c251ba0c0c8450c7055f1d
-
url_paths
/yandex/index.php
rc4.plain
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.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 explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Wine explorgu.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2896 explorgu.exe - Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorgu.job explorgu.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2896 explorgu.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2896 explorgu.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\explorgu.exe"C:\Users\Admin\AppData\Local\Temp\explorgu.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 FindShellTrayWindow
PID:2896