Overview

overview

10

Static

static

10

DCRatBuild.exe

windows10-ltsc 2021-x64

10

DCRatBuild.exe

windows11-21h2-x64

10

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General

  • Target

    DCRatBuild.exe

  • Size

    1.3MB

  • Sample

    250116-zvrgqszkgr

  • MD5

    eec69775acc89f2f67ecb0d80dc029a5

  • SHA1

    dcd800fd58fec732c0feae2febfe947f45d3944e

  • SHA256

    6e493132db3dfb86fe69552649d14eee2771430d42ff1a50f96e3e640acbf2f0

  • SHA512

    efb125891360665b85c5b11004da2de33e2f13abcf9406aa13ceb222e5ccbf5779d802cedf0f27f8e41d1a84d523a6a279e6d1bf303e035369f0bfe426457053

  • SSDEEP

    24576:u2G/nvxW3WieCGKjeM+4v4Rr6joRBbULA70dqMgkXIdu3GbyP+m:ubA3jGKTmMmULA7CbId8Gbo

Score
10/10
dcratdiscoveryevasioninfostealerrat

Malware Config

Targets

    • Target

      DCRatBuild.exe

    • Size

      1.3MB

    • MD5

      eec69775acc89f2f67ecb0d80dc029a5

    • SHA1

      dcd800fd58fec732c0feae2febfe947f45d3944e

    • SHA256

      6e493132db3dfb86fe69552649d14eee2771430d42ff1a50f96e3e640acbf2f0

    • SHA512

      efb125891360665b85c5b11004da2de33e2f13abcf9406aa13ceb222e5ccbf5779d802cedf0f27f8e41d1a84d523a6a279e6d1bf303e035369f0bfe426457053

    • SSDEEP

      24576:u2G/nvxW3WieCGKjeM+4v4Rr6joRBbULA70dqMgkXIdu3GbyP+m:ubA3jGKTmMmULA7CbId8Gbo

    Score
    10/10
    dcratdiscoveryevasioninfostealerrat

    • 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

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks