General

  • Target
    2025-12-12_66a50c7aff37078299caf166df1c2417_elex_wannacry
  • Size 3.3MB
  • Sample251212-vvs84stldp
  • SHA256 d3d51565d35b5fa6fc51e4f6645012ede54950d367319aca5a6db363242302c3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://znegs.xyz/

Targets

    • Target
      2025-12-12_66a50c7aff37078299caf166df1c2417_elex_wannacry
    • Size 3.3MB
    • SHA256 d3d51565d35b5fa6fc51e4f6645012ede54950d367319aca5a6db363242302c3
    • MD5 SHA1 SHA512 SSDEEP
    • NullMixer

      NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

    • Nullmixer family

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Privateloader family

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Checks computer location settings

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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks