Overview

overview

10

Static

static

3

fb145a2486...d4.exe

windows7-x64

10

fb145a2486...d4.exe

windows10-2004-x64

10

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General

  • Target

    fb145a248667da2c0f287c070250dc501c7b3d03df44f22e4f50a735599923d4

  • Size

    2.0MB

  • Sample

    241221-htznaavrez

  • MD5

    ff6e26dc9893c97196aefe245defeff9

  • SHA1

    6ec3649790e948299b43bc522ee6d3fc9d10f769

  • SHA256

    fb145a248667da2c0f287c070250dc501c7b3d03df44f22e4f50a735599923d4

  • SHA512

    6c4f76b35b0a90ca8e132d20a3b9d0eaf4752c6c49efe9a6f180b3b7a2091af55f8cab0be881e499a90da496ccbce7550eba4d8a3bc124060b429d44fb08e0a0

  • SSDEEP

    49152:1Djlabwz9WV429A3twp/pZ5zUg45hGUrf/osAX4RUhpKT/+qYiv:Zqw+T9ewpRzz6OUkR4R7TmqYK

Score
10/10
dcratdiscoveryinfostealerpersistencerat

Malware Config

Targets

    • Target

      fb145a248667da2c0f287c070250dc501c7b3d03df44f22e4f50a735599923d4

    • Size

      2.0MB

    • MD5

      ff6e26dc9893c97196aefe245defeff9

    • SHA1

      6ec3649790e948299b43bc522ee6d3fc9d10f769

    • SHA256

      fb145a248667da2c0f287c070250dc501c7b3d03df44f22e4f50a735599923d4

    • SHA512

      6c4f76b35b0a90ca8e132d20a3b9d0eaf4752c6c49efe9a6f180b3b7a2091af55f8cab0be881e499a90da496ccbce7550eba4d8a3bc124060b429d44fb08e0a0

    • SSDEEP

      49152:1Djlabwz9WV429A3twp/pZ5zUg45hGUrf/osAX4RUhpKT/+qYiv:Zqw+T9ewpRzz6OUkR4R7TmqYK

    Score
    10/10
    dcratdiscoveryinfostealerpersistencerat

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Modifies WinLogon for persistence

      persistence

    • Process spawned unexpected child process

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks