General

  • Target
    786CD9F43E76702FD26319D85239B17C6ACF79E5AFDA1.exe
  • Size 13KB
  • Sample211110-bc8fjadbcn
  • SHA256 786cd9f43e76702fd26319d85239b17c6acf79e5afda1a3ab82d95e46bbceff7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://82.146.56.118/output/_cached/EternalphpsecureProcessapi/b09851803105e3256d3d7ea4d4294cf1cdadcfaf.bin

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://82.146.56.118/output/_cached/EternalphpsecureProcessapi/60aafbb767c19b91d8dff49c5185de5ba687a116.bin

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://82.146.56.118/output/_cached/EternalphpsecureProcessapi/1574bddb75c78a6fd2251d61e2993b5146201319.bin

Targets

    • Target
      786CD9F43E76702FD26319D85239B17C6ACF79E5AFDA1.exe
    • Size 13KB
    • SHA256 786cd9f43e76702fd26319d85239b17c6acf79e5afda1a3ab82d95e46bbceff7
    • MD5 SHA1 SHA512
    • DcRat

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

    • Process spawned unexpected child process

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

    • suricata: ET MALWARE DCRAT Activity (GET)

      suricata: ET MALWARE DCRAT Activity (GET)

    • DCRat Payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks