Overview

overview

10

Static

static

3

5315d9d4c1...64.exe

windows7-x64

10

5315d9d4c1...64.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    5315d9d4c171c5cbe6bc6f2471043464
  • Size 2.3MB
  • Sample240111-kxdlbschdk
  • SHA256 34ac386ebfdf81651993e0f0c92e514ce59eca3c324ceff77542e8bf7bc91269
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dcratevasioninfostealerpersistencerat

Malware Config

Targets

    • Target
      5315d9d4c171c5cbe6bc6f2471043464
    • Size 2.3MB
    • SHA256 34ac386ebfdf81651993e0f0c92e514ce59eca3c324ceff77542e8bf7bc91269
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    dcratevasioninfostealerpersistencerat

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

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

      evasion

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

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

      evasion

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks