amadey | 00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1t86f5.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2c3099.exe

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

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2c3099.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1t86f5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1t86f5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2c3099.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	1t86f5.exe

Executes dropped EXE 5 IoCs

pid	Process
2592	1t86f5.exe
1376	skotes.exe
1072	2c3099.exe
4024	skotes.exe
3508	skotes.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	2c3099.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	1t86f5.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	skotes.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2592	1t86f5.exe
1376	skotes.exe
1072	2c3099.exe
4024	skotes.exe
3508	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1t86f5.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1t86f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2c3099.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2592	1t86f5.exe
2592	1t86f5.exe
1376	skotes.exe
1376	skotes.exe
1072	2c3099.exe
1072	2c3099.exe
4024	skotes.exe
4024	skotes.exe
3508	skotes.exe
3508	skotes.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2592	1t86f5.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4332 wrote to memory of 2592	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	82
PID 4332 wrote to memory of 2592	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	82
PID 4332 wrote to memory of 2592	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	82
PID 2592 wrote to memory of 1376	2592	1t86f5.exe	83
PID 2592 wrote to memory of 1376	2592	1t86f5.exe	83
PID 2592 wrote to memory of 1376	2592	1t86f5.exe	83
PID 4332 wrote to memory of 1072	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	84
PID 4332 wrote to memory of 1072	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	84
PID 4332 wrote to memory of 1072	4332	00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe	84

C:\Users\Admin\AppData\Local\Temp\00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe
"C:\Users\Admin\AppData\Local\Temp\00a31b65231dd9158f411cc8cfd85f1d2b15acc805f77869d9c938830fb3b924.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1t86f5.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1t86f5.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
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
    "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
    3⤵
    - 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
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1376
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2c3099.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2c3099.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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1072

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.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:4024

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.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:3508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

4

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2