General

  • Target

    sample.zip

  • Size

    29KB

  • Sample

    210426-3clwhb58jj

  • MD5

    e9163643ad13d02884df8c22f6ce5027

  • SHA1

    c167859dac292a5c39de04db264bc6ed2c9a90a5

  • SHA256

    8bca0695b4a7bebefb222eb9bc0eb981f85c961afc57b5c1db9cafe14e02925f

  • SHA512

    b70cc0e9f36e059269b5f92c427d5a18bee21f19471cfc225c1b4afa3d6407e5be41b072dfddae39fa0038ec0cd6dc02a6989d9c1032c9adeb8ccf58ad78687e

Malware Config

Extracted

Family

remcos

C2

185.140.53.139:8153

Targets

    • Target

      first3.exe

    • Size

      97KB

    • MD5

      60763685da4acaa59a9803fe45aab4ac

    • SHA1

      53ff1579dcc4bf9ace3a68b3f93cdf962e5e12ee

    • SHA256

      2cb8c87ed1ad2b46a43e22ac43dd47f0dddc8d4046c281f2e996bb991bd8b470

    • SHA512

      f4f54bfa82e6b18dd71ad75fa8bf50c50d4237fa28ba6ba357503ff0b6d5d7d04d037569e385c7464d1fb21e1b5edc9dc8c7403a48420a83963b489e8a272835

    • Modifies Windows Defender Real-time Protection settings

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Turns off Windows Defender SpyNet reporting

    • UAC bypass

    • Windows security bypass

    • Nirsoft

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v6

Tasks