Extracted

• • Target
    Runtime Broker.scr.exe
  • Size 231KB
  • SHA256 88bf0db97f3bf88a4b7f0aaff64cc4065cb5da6c140008e6cb22316da47428bb
  • MD5 b0d3794c8e0344c2ea7a975cfd838a53
  • SHA1 c2584b38119ed749714178ed3fa8f5b4e98ec350
  • SHA512 2ff04f56f3f2653147b0a73cfbc3910dff70f3979957f306cde22ef4a5f658409085acc40302e69bdbe7799cd99b4dff5375f59807a6a17a7898121917cb2b6b
  • SSDEEP 6144:BxW0VD1J/5bTgVziHzZnSKrCbYMmVb78Vq:X7/5/gVziHlBrCbYN8s
  • MD5 SHA1 SHA512 SSDEEP

  Score

  10^/10

  xwormbootkitdefense_evasiondiscoverypersistenceprivilege_escalationrattrojan

  • Detect Xworm Payload

  • Suspicious use of NtCreateProcessExOtherParentProcess

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Xworm family

    xworm

  • Modifies Windows Firewall

    defense_evasion

  • 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.

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • Drops file in System32 directory

  behavioral1behavioral2