General

  • Target

    f624a518c0d0807011e3349633bb2ebc4882bd74eeac3e2c35330a225d05105a

  • Size

    2.0MB

  • Sample

    240325-em9m5aff78

  • MD5

    b15b6793c343c3b86424f2ef2c4ace20

  • SHA1

    b188c80d4f7a17b7ca5a013a42fdf4095e687be7

  • SHA256

    f624a518c0d0807011e3349633bb2ebc4882bd74eeac3e2c35330a225d05105a

  • SHA512

    a302363baf8d21925c9777376bd064dda1a1442b4ec119ca5e1fcf11c3c97944c5086deac61d7a0709679fba954ee94fd6e674831537185f87709e406e732035

  • SSDEEP

    49152:32zVeRYc5/+0GJWlrZ4X69rsh4in6PtSGHxY/S0VOBXhr0HFZzPL:mzAR/BrSXIri6McxY/S0Yil9PL

Malware Config

Extracted

Family

socks5systemz

C2

http://cslftvy.net/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f471ea771795af8e05c64bdb22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3e6909e32

http://besdjre.com/search/?q=67e28dd86f58a021415baa1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a471ea771795af8e05c64bdb22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c3e6909e33

Targets

    • Target

      f624a518c0d0807011e3349633bb2ebc4882bd74eeac3e2c35330a225d05105a

    • Size

      2.0MB

    • MD5

      b15b6793c343c3b86424f2ef2c4ace20

    • SHA1

      b188c80d4f7a17b7ca5a013a42fdf4095e687be7

    • SHA256

      f624a518c0d0807011e3349633bb2ebc4882bd74eeac3e2c35330a225d05105a

    • SHA512

      a302363baf8d21925c9777376bd064dda1a1442b4ec119ca5e1fcf11c3c97944c5086deac61d7a0709679fba954ee94fd6e674831537185f87709e406e732035

    • SSDEEP

      49152:32zVeRYc5/+0GJWlrZ4X69rsh4in6PtSGHxY/S0VOBXhr0HFZzPL:mzAR/BrSXIri6McxY/S0Yil9PL

    • Detect Socks5Systemz Payload

    • Socks5Systemz

      Socks5Systemz is a botnet written in C++.

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Checks installed software on the system

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

MITRE ATT&CK Enterprise v15

Tasks