amadey | bf54e9ba7f3f8d09aedef4e6d9d377f16bb085cb5353352a3f1bb5d17f3e1263

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	HDGCAAFBFB.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__	1608caccc377a28575b839e3eec49314.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 10 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\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	HDGCAAFBFB.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	HDGCAAFBFB.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\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1608caccc377a28575b839e3eec49314.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1608caccc377a28575b839e3eec49314.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-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	explorti.exe
Key value queried	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	0ab5e91a2f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	1608caccc377a28575b839e3eec49314.exe

Executes dropped EXE 5 IoCs

pid	Process
1240	explorti.exe
3128	0ab5e91a2f.exe
4436	HDGCAAFBFB.exe
4564	explorti.exe
3708	explorti.exe

Identifies Wine through registry keys 2 TTPs 5 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-1-5-21-587429654-1855694383-2268796072-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Software\Wine	1608caccc377a28575b839e3eec49314.exe
Key opened	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Software\Wine	HDGCAAFBFB.exe
Key opened	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Software\Wine	explorti.exe

Loads dropped DLL 2 IoCs

pid	Process
3128	0ab5e91a2f.exe
3128	0ab5e91a2f.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 7 IoCs

pid	Process
2960	1608caccc377a28575b839e3eec49314.exe
1240	explorti.exe
3128	0ab5e91a2f.exe
3128	0ab5e91a2f.exe
4436	HDGCAAFBFB.exe
4564	explorti.exe
3708	explorti.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorti.job	1608caccc377a28575b839e3eec49314.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0ab5e91a2f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0ab5e91a2f.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2960	1608caccc377a28575b839e3eec49314.exe
2960	1608caccc377a28575b839e3eec49314.exe
1240	explorti.exe
1240	explorti.exe
3128	0ab5e91a2f.exe
3128	0ab5e91a2f.exe
3128	0ab5e91a2f.exe
3128	0ab5e91a2f.exe
4436	HDGCAAFBFB.exe
4436	HDGCAAFBFB.exe
4564	explorti.exe
4564	explorti.exe
3708	explorti.exe
3708	explorti.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2960	1608caccc377a28575b839e3eec49314.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3128	0ab5e91a2f.exe
5036	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 1240	2960	1608caccc377a28575b839e3eec49314.exe	83
PID 2960 wrote to memory of 1240	2960	1608caccc377a28575b839e3eec49314.exe	83
PID 2960 wrote to memory of 1240	2960	1608caccc377a28575b839e3eec49314.exe	83
PID 1240 wrote to memory of 3128	1240	explorti.exe	84
PID 1240 wrote to memory of 3128	1240	explorti.exe	84
PID 1240 wrote to memory of 3128	1240	explorti.exe	84
PID 3128 wrote to memory of 3008	3128	0ab5e91a2f.exe	85
PID 3128 wrote to memory of 3008	3128	0ab5e91a2f.exe	85
PID 3128 wrote to memory of 3008	3128	0ab5e91a2f.exe	85
PID 3128 wrote to memory of 5036	3128	0ab5e91a2f.exe	87
PID 3128 wrote to memory of 5036	3128	0ab5e91a2f.exe	87
PID 3128 wrote to memory of 5036	3128	0ab5e91a2f.exe	87
PID 3008 wrote to memory of 4436	3008	cmd.exe	89
PID 3008 wrote to memory of 4436	3008	cmd.exe	89
PID 3008 wrote to memory of 4436	3008	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\1608caccc377a28575b839e3eec49314.exe
"C:\Users\Admin\AppData\Local\Temp\1608caccc377a28575b839e3eec49314.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:2960
- 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:1240
- - C:\Users\Admin\AppData\Local\Temp\1000006001\0ab5e91a2f.exe
    "C:\Users\Admin\AppData\Local\Temp\1000006001\0ab5e91a2f.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:3128
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HDGCAAFBFB.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3008
    - - C:\Users\Admin\AppData\Local\Temp\HDGCAAFBFB.exe
        
        "C:\Users\Admin\AppData\Local\Temp\HDGCAAFBFB.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:4436
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BGCAFHCAKF.exe"
      4⤵
      Checks computer location settings
      Suspicious use of SetWindowsHookEx
      PID:5036

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:4564

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:3708

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