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General

  • Target

    613c8540d116ee2b43a99067e04fa79a.exe

  • Size

    2.9MB

  • Sample

    221027-fbxd4aaga4

  • MD5

    613c8540d116ee2b43a99067e04fa79a

  • SHA1

    9cb122624c4e81615e1e7c7b1210a2d6d0dc6840

  • SHA256

    f19bfa53dd35f17d71e2c3771b2160a2799216c8e7b6a5b5bc1253c4d12a37e7

  • SHA512

    0a53ef3bbeccdea1382dc461307da17905861977ab7d6faa6b7339d64464b4fccb36c1d418f52d7453c84d4fcf98aab7e85d3eeea4b0dd00a4ec153d7da3a3c1

  • SSDEEP

    49152:MQ00xeGLcCrbIF1T1TcRPKlQp4z8mlraJafgtHOpaAl+mx0flF640Sya:MQ0FCrbG9VcRilQpkFrpxaAl+m4Asy

Malware Config

Targets

    • Target

      613c8540d116ee2b43a99067e04fa79a.exe

    • Size

      2.9MB

    • MD5

      613c8540d116ee2b43a99067e04fa79a

    • SHA1

      9cb122624c4e81615e1e7c7b1210a2d6d0dc6840

    • SHA256

      f19bfa53dd35f17d71e2c3771b2160a2799216c8e7b6a5b5bc1253c4d12a37e7

    • SHA512

      0a53ef3bbeccdea1382dc461307da17905861977ab7d6faa6b7339d64464b4fccb36c1d418f52d7453c84d4fcf98aab7e85d3eeea4b0dd00a4ec153d7da3a3c1

    • SSDEEP

      49152:MQ00xeGLcCrbIF1T1TcRPKlQp4z8mlraJafgtHOpaAl+mx0flF640Sya:MQ0FCrbG9VcRilQpkFrpxaAl+m4Asy

    • 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.

    • UAC bypass

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Executes dropped EXE

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v6

Tasks