Resubmissions

26/03/2024, 23:58

240326-31d1dafc263

26/03/2024, 23:55

240326-3yvkcaab6w3

25/03/2024, 23:41

240325-3pykmsdf4y8

25/03/2024, 23:38

240325-3msxdadf2y3

25/03/2024, 23:14

240325-28bdsaaf668

25/03/2024, 22:57

240325-2xmbxaae9510

25/03/2024, 22:54

240325-2vtm7sdc7x7

25/03/2024, 22:53

240325-2t9yssae663

General

  • Target
    MegaBoy.rar
  • Size 453KB
  • Sample240325-2xmbxaae95
  • SHA256 538dd553c5c9e064cbdea35488d231a5ac1a269971c10ff9edd832ee4c3831d0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      MegaBoyNVM.exe
    • Size 741KB
    • SHA256 12666e89946c921a38d0450bac578d2f7ad27355c8637d332a5caaac219e6dc0
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      MegaBoyVM.exe
    • Size 102KB
    • SHA256 8a16e748ca24d7f8a5205501fd381cef33c6bbbb2e715abf6b91f486ad6afd2d
    • MD5 SHA1 SHA512 SSDEEP
    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Disables Task Manager via registry modification

    • Disables cmd.exe use via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks