stealc | f8be822eb877bfb50b6d04449004f9778ed732b877c4f2975313b8559cf6e842

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	53640549adeafc14bff28e22e.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	53640549adeafc14bff28e22e.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\VideoBiosVersion	53640549adeafc14bff28e22e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	53640549adeafc14bff28e22e.exe

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

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	53640549adeafc14bff28e22e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	53640549adeafc14bff28e22e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4548 set thread context of 4392	4548	53640549adeafc14bff28e22e.exe	81

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	53640549adeafc14bff28e22e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	53640549adeafc14bff28e22e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4392	53640549adeafc14bff28e22e.exe
4392	53640549adeafc14bff28e22e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81
PID 4548 wrote to memory of 4392	4548	53640549adeafc14bff28e22e.exe	81

C:\Users\Admin\AppData\Local\Temp\53640549adeafc14bff28e22e.exe
"C:\Users\Admin\AppData\Local\Temp\53640549adeafc14bff28e22e.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Users\Admin\AppData\Local\Temp\53640549adeafc14bff28e22e.exe
  "{path}"
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

Virtualization/Sandbox Evasion

2