bfd1a1b3ca8899504a6513dcc986298fd2c82b2c82ae7afd91d9d0046ea795b0

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Documentos de envío.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	Documentos de envío.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\VideoBiosVersion	Documentos de envío.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Documentos de envío.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Documentos de envío.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Documentos de envío.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
1784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe
1436	Documentos de envío.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	Documentos de envío.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1784	1436	Documentos de envío.exe	28
PID 1436 wrote to memory of 1784	1436	Documentos de envío.exe	28
PID 1436 wrote to memory of 1784	1436	Documentos de envío.exe	28
PID 1436 wrote to memory of 1784	1436	Documentos de envío.exe	28
PID 1436 wrote to memory of 1396	1436	Documentos de envío.exe	30
PID 1436 wrote to memory of 1396	1436	Documentos de envío.exe	30
PID 1436 wrote to memory of 1396	1436	Documentos de envío.exe	30
PID 1436 wrote to memory of 1396	1436	Documentos de envío.exe	30
PID 1436 wrote to memory of 2016	1436	Documentos de envío.exe	31
PID 1436 wrote to memory of 2016	1436	Documentos de envío.exe	31
PID 1436 wrote to memory of 2016	1436	Documentos de envío.exe	31
PID 1436 wrote to memory of 2016	1436	Documentos de envío.exe	31
PID 1436 wrote to memory of 1524	1436	Documentos de envío.exe	32
PID 1436 wrote to memory of 1524	1436	Documentos de envío.exe	32
PID 1436 wrote to memory of 1524	1436	Documentos de envío.exe	32
PID 1436 wrote to memory of 1524	1436	Documentos de envío.exe	32
PID 1436 wrote to memory of 272	1436	Documentos de envío.exe	33
PID 1436 wrote to memory of 272	1436	Documentos de envío.exe	33
PID 1436 wrote to memory of 272	1436	Documentos de envío.exe	33
PID 1436 wrote to memory of 272	1436	Documentos de envío.exe	33
PID 1436 wrote to memory of 364	1436	Documentos de envío.exe	34
PID 1436 wrote to memory of 364	1436	Documentos de envío.exe	34
PID 1436 wrote to memory of 364	1436	Documentos de envío.exe	34
PID 1436 wrote to memory of 364	1436	Documentos de envío.exe	34

C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
"C:\Users\Admin\AppData\Local\Temp\Documentos de envío.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:1436
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HRKUqkwqwkUcB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9F1E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1784
- C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
  "{path}"
  2⤵
  PID:1396
- C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
  "{path}"
  2⤵
  PID:2016
- C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
  "{path}"
  2⤵
  PID:1524
- C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
  "{path}"
  2⤵
  PID:272
- C:\Users\Admin\AppData\Local\Temp\Documentos de envío.exe
  "{path}"
  2⤵
  PID:364

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