General

  • Target
    SharkHack-v3.exe
  • Size 679.0MB
  • Sample260729-25fjbsxwdv
  • SHA256 3e1af016c453ccb4d5bf723fcba821f51e34b45f77bda0ef6068405a74d56546
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      SharkHack-v3.exe
    • Size 679.0MB
    • SHA256 3e1af016c453ccb4d5bf723fcba821f51e34b45f77bda0ef6068405a74d56546
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Downloads MZ/PE file

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

    • 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.

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks