General

  • Target

    file

  • Size

    268KB

  • Sample

    230917-3dn7tsff79

  • MD5

    1b2cb8d1d82833a67bc3428b3aa44946

  • SHA1

    915236a5564b56fc7610bbd613247f5d42cef643

  • SHA256

    63289f790fe5380ccd80c9aeb3d370bd7d568f467e8a985bd17fb36bc5b62c45

  • SHA512

    d71e01ac1adff851c4ff5775871646c21c48ce41c8e1cd235ae5fea1613e4eb00fc6c85569aff1813c5b0a91c20becdc469e4809e3af2b29879b01a8e3507b5d

  • SSDEEP

    3072:lzOeAt4GTOX6qOjB+AQlNT6NBeSg5i1Xk4v+UwjBIhVaNWYm1T:FOeAsXfeBBQjCeSeS0/N+VThT

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      268KB

    • MD5

      1b2cb8d1d82833a67bc3428b3aa44946

    • SHA1

      915236a5564b56fc7610bbd613247f5d42cef643

    • SHA256

      63289f790fe5380ccd80c9aeb3d370bd7d568f467e8a985bd17fb36bc5b62c45

    • SHA512

      d71e01ac1adff851c4ff5775871646c21c48ce41c8e1cd235ae5fea1613e4eb00fc6c85569aff1813c5b0a91c20becdc469e4809e3af2b29879b01a8e3507b5d

    • SSDEEP

      3072:lzOeAt4GTOX6qOjB+AQlNT6NBeSg5i1Xk4v+UwjBIhVaNWYm1T:FOeAsXfeBBQjCeSeS0/N+VThT

    • 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)

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks