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General

  • Target

    02a6d9f2a8ddc0e12270e8b39b2255e3

  • Size

    12.3MB

  • Sample

    231224-sc787sahcr

  • MD5

    02a6d9f2a8ddc0e12270e8b39b2255e3

  • SHA1

    d280cf802d5548da4b59a2d7fa4d3d7cf434dac5

  • SHA256

    936ba202d93326862cec01d25e4092511f2362416ccf068d0f54b344cab20064

  • SHA512

    729f4775b7c8381df1a4b620551672893c9c736216482712ef25d849eea4b691b42ad6b3a6654779346748a066bfc8135471bd2c6581f6fea81be18251f72ce1

  • SSDEEP

    49152:kvVGWdbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb:kvV

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      02a6d9f2a8ddc0e12270e8b39b2255e3

    • Size

      12.3MB

    • MD5

      02a6d9f2a8ddc0e12270e8b39b2255e3

    • SHA1

      d280cf802d5548da4b59a2d7fa4d3d7cf434dac5

    • SHA256

      936ba202d93326862cec01d25e4092511f2362416ccf068d0f54b344cab20064

    • SHA512

      729f4775b7c8381df1a4b620551672893c9c736216482712ef25d849eea4b691b42ad6b3a6654779346748a066bfc8135471bd2c6581f6fea81be18251f72ce1

    • SSDEEP

      49152:kvVGWdbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb:kvV

    • Tofsee

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

    • Windows security bypass

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks