General

  • Target

    e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe

  • Size

    2.0MB

  • Sample

    240325-cyk3ssdg25

  • MD5

    c38657e4d1f8fa6d62e4d6206660617f

  • SHA1

    42b07485195e3bf7a5d67b838c8c397e531492bc

  • SHA256

    e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11

  • SHA512

    1cbf1697e6cc5103975bf4a2c008f8845d4620caa21b13c8123ba51ce1d66e19c8e768d78f88d0b6627e80d3a7f9ce017a81bb4d6fef8a8c873bbdbaec19c483

  • SSDEEP

    49152:32oYfZz5qNVwfp98z/D7P/VFPjd70xiw4F+WUM:moYfCVwfXo/33R70ElpUM

Malware Config

Extracted

Family

socks5systemz

C2

http://bessjri.com/search/?q=67e28dd83f0bf1291606a9177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc12c8ee91

http://ejzrhjo.ua/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec9d9b3f

Targets

    • Target

      e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe

    • Size

      2.0MB

    • MD5

      c38657e4d1f8fa6d62e4d6206660617f

    • SHA1

      42b07485195e3bf7a5d67b838c8c397e531492bc

    • SHA256

      e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11

    • SHA512

      1cbf1697e6cc5103975bf4a2c008f8845d4620caa21b13c8123ba51ce1d66e19c8e768d78f88d0b6627e80d3a7f9ce017a81bb4d6fef8a8c873bbdbaec19c483

    • SSDEEP

      49152:32oYfZz5qNVwfp98z/D7P/VFPjd70xiw4F+WUM:moYfCVwfXo/33R70ElpUM

    • Detect Socks5Systemz Payload

    • Socks5Systemz

      Socks5Systemz is a botnet written in C++.

    • Detects executables packed with VMProtect.

    • 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