General

  • Target

    2a0c47d8f5e14cfda0437c59c57fbce9.exe

  • Size

    1.9MB

  • Sample

    240530-nqkb3sgg64

  • MD5

    2a0c47d8f5e14cfda0437c59c57fbce9

  • SHA1

    a1c37d6d20049b2bc1a1db1d99b4f5b7fcd9c2b0

  • SHA256

    22cdd8b1c569a17884bd5ab6d67a77ada1309b849775b3967a91111f3ab0e400

  • SHA512

    790702639348c58c99dcf4bd35d3b47bd544c7e4cd43fab90b5643f2917e3549e8e92a09d7aea3fed05766c086bdecdadf70c392289c46dc667e69cde73595d5

  • SSDEEP

    24576:ZcIqg3pZ9Lbp1x5mMnbJ4ANfUAlkDd/2uUpET57RLGKETv/cyUM6MniOlsxvZBSg:3rhDbJ4dAlkpuuUpY57cKEr0a7iOyKc

Malware Config

Targets

    • Target

      2a0c47d8f5e14cfda0437c59c57fbce9.exe

    • Size

      1.9MB

    • MD5

      2a0c47d8f5e14cfda0437c59c57fbce9

    • SHA1

      a1c37d6d20049b2bc1a1db1d99b4f5b7fcd9c2b0

    • SHA256

      22cdd8b1c569a17884bd5ab6d67a77ada1309b849775b3967a91111f3ab0e400

    • SHA512

      790702639348c58c99dcf4bd35d3b47bd544c7e4cd43fab90b5643f2917e3549e8e92a09d7aea3fed05766c086bdecdadf70c392289c46dc667e69cde73595d5

    • SSDEEP

      24576:ZcIqg3pZ9Lbp1x5mMnbJ4ANfUAlkDd/2uUpET57RLGKETv/cyUM6MniOlsxvZBSg:3rhDbJ4dAlkpuuUpY57cKEr0a7iOyKc

    • DcRat

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

    • Modifies WinLogon for persistence

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks