General

  • Target

    file.exe

  • Size

    151KB

  • Sample

    221127-mc32ladf2z

  • MD5

    c6da99bdac1c58f64068a59cfc14cc1d

  • SHA1

    30e5778ec4ca8d7342b9a67536a7fdbf75492cb6

  • SHA256

    0e695a73d1160a27551db66b159e18b0b5223a714292286cf49a403493550c6c

  • SHA512

    56789243984bfc7b303e0232d7e0d9c77074f7735912971a7739eff4b158fc114e63780a1bb0081dcd7d903bfa9885a24e577f32097da42de65b5b66bb981bce

  • SSDEEP

    3072:3Udgwq4QFkt7LPOjW5zTMNjVXBg+Oj3uHGQIDEOxuAe:+8+vPOQwxXO+OFD1

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      151KB

    • MD5

      c6da99bdac1c58f64068a59cfc14cc1d

    • SHA1

      30e5778ec4ca8d7342b9a67536a7fdbf75492cb6

    • SHA256

      0e695a73d1160a27551db66b159e18b0b5223a714292286cf49a403493550c6c

    • SHA512

      56789243984bfc7b303e0232d7e0d9c77074f7735912971a7739eff4b158fc114e63780a1bb0081dcd7d903bfa9885a24e577f32097da42de65b5b66bb981bce

    • SSDEEP

      3072:3Udgwq4QFkt7LPOjW5zTMNjVXBg+Oj3uHGQIDEOxuAe:+8+vPOQwxXO+OFD1

    • 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

    • Checks computer location settings

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

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks