514962de0cfcafea5c6a6ff3c7162c8a9ac2a7362f44812c9f74cf92092c0af3

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Attached Payment.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	Attached Payment.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

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Attached Payment.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Attached Payment.exe

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

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Attached Payment.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Attached Payment.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
1016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe
1964	Attached Payment.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	Attached Payment.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1016	1964	Attached Payment.exe	29
PID 1964 wrote to memory of 1016	1964	Attached Payment.exe	29
PID 1964 wrote to memory of 1016	1964	Attached Payment.exe	29
PID 1964 wrote to memory of 1016	1964	Attached Payment.exe	29
PID 1964 wrote to memory of 1152	1964	Attached Payment.exe	31
PID 1964 wrote to memory of 1152	1964	Attached Payment.exe	31
PID 1964 wrote to memory of 1152	1964	Attached Payment.exe	31
PID 1964 wrote to memory of 1152	1964	Attached Payment.exe	31
PID 1964 wrote to memory of 752	1964	Attached Payment.exe	32
PID 1964 wrote to memory of 752	1964	Attached Payment.exe	32
PID 1964 wrote to memory of 752	1964	Attached Payment.exe	32
PID 1964 wrote to memory of 752	1964	Attached Payment.exe	32
PID 1964 wrote to memory of 1536	1964	Attached Payment.exe	33
PID 1964 wrote to memory of 1536	1964	Attached Payment.exe	33
PID 1964 wrote to memory of 1536	1964	Attached Payment.exe	33
PID 1964 wrote to memory of 1536	1964	Attached Payment.exe	33
PID 1964 wrote to memory of 1912	1964	Attached Payment.exe	34
PID 1964 wrote to memory of 1912	1964	Attached Payment.exe	34
PID 1964 wrote to memory of 1912	1964	Attached Payment.exe	34
PID 1964 wrote to memory of 1912	1964	Attached Payment.exe	34
PID 1964 wrote to memory of 1780	1964	Attached Payment.exe	35
PID 1964 wrote to memory of 1780	1964	Attached Payment.exe	35
PID 1964 wrote to memory of 1780	1964	Attached Payment.exe	35
PID 1964 wrote to memory of 1780	1964	Attached Payment.exe	35

C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Attached Payment.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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BYIUSAiNV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp68E1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1016
- C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
  "{path}"
  2⤵
  PID:1152
- C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
  "{path}"
  2⤵
  PID:752
- C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
  "{path}"
  2⤵
  PID:1536
- C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
  "{path}"
  2⤵
  PID:1912
- C:\Users\Admin\AppData\Local\Temp\Attached Payment.exe
  "{path}"
  2⤵
  PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

Persistence

Scheduled Task

1

Privilege Escalation

Scheduled Task

1

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2