General

  • Target

    82aa9a86e40c08cd9fb8a692485ed58cd00e737747da32b80b7cd93809ef7de5

  • Size

    183KB

  • Sample

    240831-qeadvavfka

  • MD5

    5850e3ef75111d249490ac0293593eb5

  • SHA1

    56d93968aebe60cecf34fb753dc43255e903279a

  • SHA256

    82aa9a86e40c08cd9fb8a692485ed58cd00e737747da32b80b7cd93809ef7de5

  • SHA512

    d078ff59eeeb2cdcf9a8e3dbfda250f1e17c4b08f86d837ecac999b36d2ff93f227ec349cfc6c51e579cb5ab4972e0c230f34da0b2518dcd31ff61d2aed212f4

  • SSDEEP

    3072:1Rl4Z+a9DccXDqFqiPvQeRb1qJWYeTWEXGv7ON+pPoUPa8B+OLFRnPvkS/dvbPNP:1LJ4KNV5NuPoU+OLrLbiwl

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd

    • Size

      13.6MB

    • MD5

      b5b559ae20ec80c26ec50afd2d077f53

    • SHA1

      4553fc5937302711ee5e74a881c7fd4acd119e5b

    • SHA256

      072e795c44b87d1eb54005be791e75db47cb9717e43b300d3e27b6c9d99523fd

    • SHA512

      dadb525483641f1574c5efcb48cc2c1333d34145b1b7e6386afa9f3e64db7ce45bbe4fc70f2656a997ec42e839bc73cb4c641bd97061e95d712c476f5573cdfd

    • SSDEEP

      196608:aI+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++2:a

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks