General

  • Target

    e9d1437184a90a2d3f7d2c6fb72090f05708e8836f012fc86157fae568869ab1

  • Size

    259KB

  • Sample

    230108-w8lxmaed36

  • MD5

    8f91338cff013387502d6971105c2f42

  • SHA1

    9d2b3dc60bf90735589d68e3a00cdaa4b926593a

  • SHA256

    e9d1437184a90a2d3f7d2c6fb72090f05708e8836f012fc86157fae568869ab1

  • SHA512

    935c2ab6938844daa4518d696d8546e9bc55abc7ba6412ec4176255af1d0728b94ec0256bd12b956b076d7162bfd4a7abd044c06176092d948574188d11268aa

  • SSDEEP

    3072:fXh8wcrdLO24/Efecn5/cwml1rqjJMfJ6MxNt5SxjCUWHBYjAPgyFP9hZCRRzMuw:PuLOUfecpcwmllS2fJvjtHBx1cqgd3

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      e9d1437184a90a2d3f7d2c6fb72090f05708e8836f012fc86157fae568869ab1

    • Size

      259KB

    • MD5

      8f91338cff013387502d6971105c2f42

    • SHA1

      9d2b3dc60bf90735589d68e3a00cdaa4b926593a

    • SHA256

      e9d1437184a90a2d3f7d2c6fb72090f05708e8836f012fc86157fae568869ab1

    • SHA512

      935c2ab6938844daa4518d696d8546e9bc55abc7ba6412ec4176255af1d0728b94ec0256bd12b956b076d7162bfd4a7abd044c06176092d948574188d11268aa

    • SSDEEP

      3072:fXh8wcrdLO24/Efecn5/cwml1rqjJMfJ6MxNt5SxjCUWHBYjAPgyFP9hZCRRzMuw:PuLOUfecpcwmllS2fJvjtHBx1cqgd3

    • Tofsee

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

    • Windows security bypass

    • 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