Analysis
-
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
12-05-2024 20:59
Static task
static1
Behavioral task
behavioral1
Sample
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe
Resource
win10v2004-20240508-en
General
-
Target
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe
-
Size
1.8MB
-
MD5
49aad954da5f6e5b88f3af8073fa084c
-
SHA1
c12730c64d742e370454fff7dd196f755b5e7cde
-
SHA256
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb
-
SHA512
45138074a92dbc05c42d74e05684e9855a4f5bcb25fdccceb22784a25611b8c8f33a53decb36338025842b6b2d240bb90057a7704c53149a6b823edd4c52a0b0
-
SSDEEP
49152:2N0hrhPxlJ4M/3iEpDzVibCqXlUGV5H7fblIvKQ:q0ZhiMv6zHTbySQ
Malware Config
Extracted
amadey
4.20
http://5.42.96.141
-
install_dir
908f070dff
-
install_file
explorku.exe
-
strings_key
b25a9385246248a95c600f9a061438e1
-
url_paths
/go34ko8/index.php
Signatures
-
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exeexplorku.exeexplorku.exeexplorku.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe -
Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorku.exeexplorku.exeexplorku.exe82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe -
Executes dropped EXE 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid Process 4368 explorku.exe 2552 explorku.exe 3176 explorku.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:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exeexplorku.exeexplorku.exeexplorku.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explorku.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explorku.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explorku.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exeexplorku.exeexplorku.exeexplorku.exepid Process 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 4368 explorku.exe 2552 explorku.exe 3176 explorku.exe -
Drops file in Windows directory 1 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exedescription ioc Process File created C:\Windows\Tasks\explorku.job 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exeexplorku.exeexplorku.exeexplorku.exepid Process 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 4368 explorku.exe 4368 explorku.exe 2552 explorku.exe 2552 explorku.exe 3176 explorku.exe 3176 explorku.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exepid Process 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exedescription pid Process procid_target PID 3360 wrote to memory of 4368 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 78 PID 3360 wrote to memory of 4368 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 78 PID 3360 wrote to memory of 4368 3360 82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.exe"C:\Users\Admin\AppData\Local\Temp\82618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb.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
- Suspicious use of WriteProcessMemory
PID:3360 -
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.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:4368
-
-
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.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:2552
-
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.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:3176
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.8MB
MD549aad954da5f6e5b88f3af8073fa084c
SHA1c12730c64d742e370454fff7dd196f755b5e7cde
SHA25682618c833f71e930d8701e3992fe9964b3c95dac9d53ce321d9f350ba827e3cb
SHA51245138074a92dbc05c42d74e05684e9855a4f5bcb25fdccceb22784a25611b8c8f33a53decb36338025842b6b2d240bb90057a7704c53149a6b823edd4c52a0b0