mercurialgrabber | 1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	archivo.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\VMWare, Inc.\VMWare Tools	archivo.exe

Checks BIOS information in registry 2 TTPs 1 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	archivo.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	archivo1.exe

Executes dropped EXE 2 IoCs

pid	Process
3060	archivo1.exe
2184	archivo.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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	archivo.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	archivo.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 1 IoCs

SCSI 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\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	archivo.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	archivo.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	archivo.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	archivo.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	archivo.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 1384	4648	1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81.exe	82
PID 4648 wrote to memory of 1384	4648	1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81.exe	82
PID 1384 wrote to memory of 3060	1384	cmd.exe	85
PID 1384 wrote to memory of 3060	1384	cmd.exe	85
PID 3060 wrote to memory of 2184	3060	archivo1.exe	86
PID 3060 wrote to memory of 2184	3060	archivo1.exe	86

C:\Users\Admin\AppData\Local\Temp\1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81.exe
"C:\Users\Admin\AppData\Local\Temp\1bdf2d64894f6ae05948436ee261bc8492611aae9feca26751934c79e5aabf81.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\batch.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Users\Admin\AppData\Local\Temp\archivo1.exe
    archivo1.exe -pTKrVj0QLiM@B -dC:\Users\Admin\AppData\Local\Temp
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3060
  - - C:\Users\Admin\AppData\Local\Temp\archivo.exe
      "C:\Users\Admin\AppData\Local\Temp\archivo.exe"
      4⤵
      Looks for VirtualBox Guest Additions in registry
      Looks for VMWare Tools registry key
      Checks BIOS information in registry
      Executes dropped EXE
      Maps connected drives based on registry
      Checks SCSI registry key(s)
      Enumerates system info in registry
      PID:2184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

6

Virtualization/Sandbox Evasion

2

Lateral Movement

Collection

Data from Local System