General

  • Target

    0422b94d0a534662feb275bc08e4c9354da3c420175f17af19a2d530a8c6a55d

  • Size

    1.4MB

  • Sample

    220527-1zppdaecg6

  • MD5

    83893231b42fb379bbbd035bf6d66d5a

  • SHA1

    77a1d125a1bbf56a1850029fa17fa76a7bb9178e

  • SHA256

    0422b94d0a534662feb275bc08e4c9354da3c420175f17af19a2d530a8c6a55d

  • SHA512

    47ea8105790946b9bd646bdff102b6632330d0f4e10fb46b75e1cd4d0662e8ff37852fba5375fe85b18b714efd0674bb9292ceffb4997bc0683c975b1e6c9687

Malware Config

Targets

    • Target

      0422b94d0a534662feb275bc08e4c9354da3c420175f17af19a2d530a8c6a55d

    • Size

      1.4MB

    • MD5

      83893231b42fb379bbbd035bf6d66d5a

    • SHA1

      77a1d125a1bbf56a1850029fa17fa76a7bb9178e

    • SHA256

      0422b94d0a534662feb275bc08e4c9354da3c420175f17af19a2d530a8c6a55d

    • SHA512

      47ea8105790946b9bd646bdff102b6632330d0f4e10fb46b75e1cd4d0662e8ff37852fba5375fe85b18b714efd0674bb9292ceffb4997bc0683c975b1e6c9687

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Executes dropped EXE

    • Looks for VMWare Tools registry key

    • Registers COM server for autorun

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Checks whether UAC is enabled

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks