General

  • Target

    PyDec.zip

  • Size

    279KB

  • Sample

    241222-twy1batjgs

  • MD5

    cdd0900edeedfc6ecf4cbde8e84dd0dd

  • SHA1

    3b4c43a23e3f759d3dfa21eb3a5f2bf52493f254

  • SHA256

    f00bc957948a4acb2b43a65702e34de767ad8cdf7efefea11e4f57a039ad5bcc

  • SHA512

    a0fbfea4ed19c61795f2e86007744b5e02c6e783a99cd395046f7de27ccc74ca8c824cb121479ebb22d4ff7e4cb43aae1639ac9bd0cc8ef422a759339582f6a5

  • SSDEEP

    6144:kYKEiGGFCPWd83uUeRlKeg8/KZ7h2AVB4+VI+xZ77:BfGMPHuVlKnZ12ATVjN

Malware Config

Targets

    • Target

      PyDec.zip

    • Size

      279KB

    • MD5

      cdd0900edeedfc6ecf4cbde8e84dd0dd

    • SHA1

      3b4c43a23e3f759d3dfa21eb3a5f2bf52493f254

    • SHA256

      f00bc957948a4acb2b43a65702e34de767ad8cdf7efefea11e4f57a039ad5bcc

    • SHA512

      a0fbfea4ed19c61795f2e86007744b5e02c6e783a99cd395046f7de27ccc74ca8c824cb121479ebb22d4ff7e4cb43aae1639ac9bd0cc8ef422a759339582f6a5

    • SSDEEP

      6144:kYKEiGGFCPWd83uUeRlKeg8/KZ7h2AVB4+VI+xZ77:BfGMPHuVlKnZ12ATVjN

    • DcRat

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

    • Dcrat family

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks