6c551a1172a33d11b974f02a5e5489f851fcf1899e877c7e59abd2f650526c19

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Checks BIOS information in registry 2 TTPs 2 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	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Identifies Wine through registry keys 2 TTPs 1 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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
31	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.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 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

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	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe
4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 1812	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	99
PID 4792 wrote to memory of 1812	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	99
PID 4792 wrote to memory of 1812	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	99
PID 4792 wrote to memory of 4776	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	101
PID 4792 wrote to memory of 4776	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	101
PID 4792 wrote to memory of 4776	4792	284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe	101

C:\Users\Admin\AppData\Local\Temp\284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.exe
"C:\Users\Admin\AppData\Local\Temp\284c9bd06ae67203244ed420c798188c7d0846938b21ba970ce64318452d6947.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
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\fsfvnaeta.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\wlnedbldrp.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion