General

  • Target

    2024-11-21_bf76e56ebf9bfeeb4660d2b38c1a431e_ryuk

  • Size

    4.1MB

  • Sample

    241121-nvpgla1rgz

  • MD5

    bf76e56ebf9bfeeb4660d2b38c1a431e

  • SHA1

    9c312e856d8c35cccde1657773b7fd7c60585233

  • SHA256

    9942b0cf3776c6a023f103deacba17a52607707d6257531c0fd2e3982d5979af

  • SHA512

    4b860b1f5111b4a77c139ae65b7293e1211264d71b1540e210cdcca52972d1ba5e7aa4e5adf53edbd36727e85fa4625074e21ff4e4fa4ef7ae018ac0014b5852

  • SSDEEP

    49152:/xGK0l3e3udPEcpRd2oXnXfvVOvw4CLzEAgpAEVV7yKzYkkrKVmZ:/xGK09yuZZ

Malware Config

Extracted

Family

meduza

C2

109.107.181.162

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    703

  • extensions

    none

  • grabber_max_size

    1.048576e+06

  • links

    none

  • port

    15666

  • self_destruct

    true

Targets

    • Target

      2024-11-21_bf76e56ebf9bfeeb4660d2b38c1a431e_ryuk

    • Size

      4.1MB

    • MD5

      bf76e56ebf9bfeeb4660d2b38c1a431e

    • SHA1

      9c312e856d8c35cccde1657773b7fd7c60585233

    • SHA256

      9942b0cf3776c6a023f103deacba17a52607707d6257531c0fd2e3982d5979af

    • SHA512

      4b860b1f5111b4a77c139ae65b7293e1211264d71b1540e210cdcca52972d1ba5e7aa4e5adf53edbd36727e85fa4625074e21ff4e4fa4ef7ae018ac0014b5852

    • SSDEEP

      49152:/xGK0l3e3udPEcpRd2oXnXfvVOvw4CLzEAgpAEVV7yKzYkkrKVmZ:/xGK09yuZZ

    • Meduza

      Meduza is a crypto wallet and info stealer written in C++.

    • Meduza Stealer payload

    • Meduza family

    • Checks computer location settings

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

    • Deletes itself

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Checks installed software on the system

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

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks