General

  • Target

    9dd37088a9391d314eaf5b8c6ecfe7e64c07cfb7f86abb250b7d743478ca189b

  • Size

    150KB

  • Sample

    221127-t9ehtsga61

  • MD5

    2c7fef3be2816a8e7817857936d0b30d

  • SHA1

    244e5a9674d386c1c179532d02e775ec09fc85f5

  • SHA256

    9dd37088a9391d314eaf5b8c6ecfe7e64c07cfb7f86abb250b7d743478ca189b

  • SHA512

    f2211862335c0e6c5540af40fbcff688f7c643a771ea436126f367ac3cceb74352c6c2cbf2dbda45e809138e1ab1bac7f55832798a7dfb4b15139eb4b1a0819c

  • SSDEEP

    3072:M0QRwqrq5cmFhuOTJJv5K5z/r9I0yOZxcyBZyHWmHkNj6I5eaVX:OO51YiJO5zz9IkxRMHkNn5eaJ

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      9dd37088a9391d314eaf5b8c6ecfe7e64c07cfb7f86abb250b7d743478ca189b

    • Size

      150KB

    • MD5

      2c7fef3be2816a8e7817857936d0b30d

    • SHA1

      244e5a9674d386c1c179532d02e775ec09fc85f5

    • SHA256

      9dd37088a9391d314eaf5b8c6ecfe7e64c07cfb7f86abb250b7d743478ca189b

    • SHA512

      f2211862335c0e6c5540af40fbcff688f7c643a771ea436126f367ac3cceb74352c6c2cbf2dbda45e809138e1ab1bac7f55832798a7dfb4b15139eb4b1a0819c

    • SSDEEP

      3072:M0QRwqrq5cmFhuOTJJv5K5z/r9I0yOZxcyBZyHWmHkNj6I5eaVX:OO51YiJO5zz9IkxRMHkNn5eaJ

    • Tofsee

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

    • 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

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks