Overview

overview

10

Static

static

10

d1fb78c4ef...61.exe

windows7-x64

10

d1fb78c4ef...61.exe

windows10-2004-x64

10

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General

  • Target

    d1fb78c4ef45c686ea6b8b6c44fe19f2d2d155e04f8d1305e34e21e0d4300c61

  • Size

    1.3MB

  • Sample

    241221-tkkzbasmcw

  • MD5

    07390b562b02da9bea3786db7d59dbd3

  • SHA1

    5f3c11b3450c0c957e90cd9d0103dfd97e090e46

  • SHA256

    d1fb78c4ef45c686ea6b8b6c44fe19f2d2d155e04f8d1305e34e21e0d4300c61

  • SHA512

    b9f830791aef1fb5f6d1a3b1277613cc44069f12c3564c77f5f2cae0b348a77b39dcedcb223636aa3aff998ca5f4a688d10e5c92a13135b15a5024aca477fc3a

  • SSDEEP

    24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

Score
10/10
dcratdiscoveryexecutioninfostealerrat

Malware Config

Targets

    • Target

      d1fb78c4ef45c686ea6b8b6c44fe19f2d2d155e04f8d1305e34e21e0d4300c61

    • Size

      1.3MB

    • MD5

      07390b562b02da9bea3786db7d59dbd3

    • SHA1

      5f3c11b3450c0c957e90cd9d0103dfd97e090e46

    • SHA256

      d1fb78c4ef45c686ea6b8b6c44fe19f2d2d155e04f8d1305e34e21e0d4300c61

    • SHA512

      b9f830791aef1fb5f6d1a3b1277613cc44069f12c3564c77f5f2cae0b348a77b39dcedcb223636aa3aff998ca5f4a688d10e5c92a13135b15a5024aca477fc3a

    • SSDEEP

      24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

    Score
    10/10
    dcratdiscoveryexecutioninfostealerrat

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • 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

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks