General

  • Target
    a1d23796732487b40ce43b22983327b2.exe
  • Size 279KB
  • Sample211020-g5gfeahfcp
  • SHA256 84839e5c70038104b4d9fbf20988ebc952ea698be6d46c0ad5ed072897427b3f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • tofsee

C2
  • quadoil.ru

  • lakeflex.ru

Targets

    • Target
      a1d23796732487b40ce43b22983327b2.exe
    • Size 279KB
    • SHA256 84839e5c70038104b4d9fbf20988ebc952ea698be6d46c0ad5ed072897427b3f
    • MD5 SHA1 SHA512
    • Tofsee

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

    • Windows security bypass

    • suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

      suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

    • xmrig

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks