amadey | 4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684

Virtualization/Sandbox Evasion

description	ioc	Process
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__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	EHCGIJDHDG.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	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.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	EHCGIJDHDG.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	EHCGIJDHDG.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\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.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	8f8c24e840.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
4788	explorti.exe
3240	8f8c24e840.exe
1148	EHCGIJDHDG.exe
1452	explorti.exe
4940	explorti.exe
316	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	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.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	EHCGIJDHDG.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	explorti.exe

Loads dropped DLL 2 IoCs

pid	Process
3240	8f8c24e840.exe
3240	8f8c24e840.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 8 IoCs

pid	Process
376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
4788	explorti.exe
3240	8f8c24e840.exe
3240	8f8c24e840.exe
1148	EHCGIJDHDG.exe
1452	explorti.exe
4940	explorti.exe
316	explorti.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorti.job	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.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	8f8c24e840.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8f8c24e840.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
4788	explorti.exe
4788	explorti.exe
3240	8f8c24e840.exe
3240	8f8c24e840.exe
3240	8f8c24e840.exe
3240	8f8c24e840.exe
1148	EHCGIJDHDG.exe
1148	EHCGIJDHDG.exe
1452	explorti.exe
1452	explorti.exe
4940	explorti.exe
4940	explorti.exe
316	explorti.exe
316	explorti.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3240	8f8c24e840.exe
448	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 4788	376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe	81
PID 376 wrote to memory of 4788	376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe	81
PID 376 wrote to memory of 4788	376	4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe	81
PID 4788 wrote to memory of 3240	4788	explorti.exe	86
PID 4788 wrote to memory of 3240	4788	explorti.exe	86
PID 4788 wrote to memory of 3240	4788	explorti.exe	86
PID 3240 wrote to memory of 412	3240	8f8c24e840.exe	90
PID 3240 wrote to memory of 412	3240	8f8c24e840.exe	90
PID 3240 wrote to memory of 412	3240	8f8c24e840.exe	90
PID 3240 wrote to memory of 448	3240	8f8c24e840.exe	92
PID 3240 wrote to memory of 448	3240	8f8c24e840.exe	92
PID 3240 wrote to memory of 448	3240	8f8c24e840.exe	92
PID 412 wrote to memory of 1148	412	cmd.exe	94
PID 412 wrote to memory of 1148	412	cmd.exe	94
PID 412 wrote to memory of 1148	412	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.exe
"C:\Users\Admin\AppData\Local\Temp\4335ca8de7d9d59c0b2f24e633e1df5939cbd1d4e3e81cfe3a5252bdeee4c684.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 WriteProcessMemory
PID:376
- 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:4788
- - C:\Users\Admin\AppData\Local\Temp\1000006001\8f8c24e840.exe
    "C:\Users\Admin\AppData\Local\Temp\1000006001\8f8c24e840.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:3240
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EHCGIJDHDG.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:412
    - - C:\Users\Admin\AppData\Local\Temp\EHCGIJDHDG.exe
        
        "C:\Users\Admin\AppData\Local\Temp\EHCGIJDHDG.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:1148
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KJDHCAFCGD.exe"
      4⤵
      Checks computer location settings
      Suspicious use of SetWindowsHookEx
      PID:448

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:1452

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:4940

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:316

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