General

  • Target

    c99590ceea962a47d2c1f296427fd4c0

  • Size

    12.5MB

  • Sample

    240314-zkqgpaeg6x

  • MD5

    c99590ceea962a47d2c1f296427fd4c0

  • SHA1

    50a6bdfa2ffd566ccd88ef3dfb7b2e6a4a087afa

  • SHA256

    4e22f19f44e653a725ee0efb10b66985cd6b56df527781659b14fdad2645e542

  • SHA512

    d2635a75533708305f47456df0eca41cbe669a9b722c656673bae02c696e8b23e7704a96ef57a0106daa9eb28da902758c84ad1c477068363f190e1ae6d431d0

  • SSDEEP

    24576:6erU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbX:6sW

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      c99590ceea962a47d2c1f296427fd4c0

    • Size

      12.5MB

    • MD5

      c99590ceea962a47d2c1f296427fd4c0

    • SHA1

      50a6bdfa2ffd566ccd88ef3dfb7b2e6a4a087afa

    • SHA256

      4e22f19f44e653a725ee0efb10b66985cd6b56df527781659b14fdad2645e542

    • SHA512

      d2635a75533708305f47456df0eca41cbe669a9b722c656673bae02c696e8b23e7704a96ef57a0106daa9eb28da902758c84ad1c477068363f190e1ae6d431d0

    • SSDEEP

      24576:6erU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbX:6sW

    • 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