General

  • Target

    Copy of Covalent Bonding Notes.pdf

  • Size

    1.5MB

  • Sample

    241209-2xrxdsvjdw

  • MD5

    3e1c01222eb8c573627fe361730c5592

  • SHA1

    3d9fe91492c454cc8430376565d74f3d3759adde

  • SHA256

    849759852e4ccad9a51f693baa8471bc9d91d2b212f0f6ed0792835ee9bb88fb

  • SHA512

    a779651912d0d8cade124b6984d912e7d266603effc870d034db786edf134ed4cec1f780f8f081e72271a17b58212d25e47c261860531c45e7273f4335535dc5

  • SSDEEP

    24576:qcZIRP3FS/2I6Nwp6TW5Ns6TT3uOU7SK7J/AGvZGllpwjO35jFbNGG6:p0S/2I6WNV5U7SK7J46INFgr

Malware Config

Targets

    • Target

      Copy of Covalent Bonding Notes.pdf

    • Size

      1.5MB

    • MD5

      3e1c01222eb8c573627fe361730c5592

    • SHA1

      3d9fe91492c454cc8430376565d74f3d3759adde

    • SHA256

      849759852e4ccad9a51f693baa8471bc9d91d2b212f0f6ed0792835ee9bb88fb

    • SHA512

      a779651912d0d8cade124b6984d912e7d266603effc870d034db786edf134ed4cec1f780f8f081e72271a17b58212d25e47c261860531c45e7273f4335535dc5

    • SSDEEP

      24576:qcZIRP3FS/2I6Nwp6TW5Ns6TT3uOU7SK7J/AGvZGllpwjO35jFbNGG6:p0S/2I6WNV5U7SK7J46INFgr

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

    • A potential corporate email address has been identified in the URL: =@L

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Detected potential entity reuse from brand MICROSOFT.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks