amadey | b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	BGDBAKFCFH.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 12 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	BGDBAKFCFH.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	BGDBAKFCFH.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe

Checks computer location settings 2 TTPs 4 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	explorti.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	bf696612f1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 6 IoCs

pid	Process
3720	explorti.exe
2712	bf696612f1.exe
884	explorti.exe
2284	BGDBAKFCFH.exe
4824	explorti.exe
1580	explorti.exe

Identifies Wine through registry keys 2 TTPs 6 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	BGDBAKFCFH.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explorti.exe

Loads dropped DLL 2 IoCs

pid	Process
2712	bf696612f1.exe
2712	bf696612f1.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs

pid	Process
1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
3720	explorti.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
884	explorti.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
2284	BGDBAKFCFH.exe
4824	explorti.exe
1580	explorti.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorti.job	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bf696612f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bf696612f1.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
3720	explorti.exe
3720	explorti.exe
884	explorti.exe
884	explorti.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
2712	bf696612f1.exe
2284	BGDBAKFCFH.exe
2284	BGDBAKFCFH.exe
4824	explorti.exe
4824	explorti.exe
1580	explorti.exe
1580	explorti.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2712	bf696612f1.exe
3164	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 3720	1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe	83
PID 1100 wrote to memory of 3720	1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe	83
PID 1100 wrote to memory of 3720	1100	b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe	83
PID 3720 wrote to memory of 2712	3720	explorti.exe	88
PID 3720 wrote to memory of 2712	3720	explorti.exe	88
PID 3720 wrote to memory of 2712	3720	explorti.exe	88
PID 2712 wrote to memory of 1836	2712	bf696612f1.exe	95
PID 2712 wrote to memory of 1836	2712	bf696612f1.exe	95
PID 2712 wrote to memory of 1836	2712	bf696612f1.exe	95
PID 2712 wrote to memory of 3164	2712	bf696612f1.exe	97
PID 2712 wrote to memory of 3164	2712	bf696612f1.exe	97
PID 2712 wrote to memory of 3164	2712	bf696612f1.exe	97
PID 1836 wrote to memory of 2284	1836	cmd.exe	99
PID 1836 wrote to memory of 2284	1836	cmd.exe	99
PID 1836 wrote to memory of 2284	1836	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe
"C:\Users\Admin\AppData\Local\Temp\b4e5ea171623572580bb410b04808790db808e3faac36b4da44bfb86daeb3502.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- 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:1100
- C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
  "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Users\Admin\AppData\Local\Temp\1000006001\bf696612f1.exe
    "C:\Users\Admin\AppData\Local\Temp\1000006001\bf696612f1.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2712
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BGDBAKFCFH.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1836
    - - C:\Users\Admin\AppData\Local\Temp\BGDBAKFCFH.exe
        
        "C:\Users\Admin\AppData\Local\Temp\BGDBAKFCFH.exe"
        5⤵
        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:2284
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EGDGIEGHJE.exe"
      4⤵
      Checks computer location settings
      Suspicious use of SetWindowsHookEx
      PID:3164

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- 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:884

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- 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:4824

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- 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:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion