General

  • Target

    99bd790593bc23873774f48cb8b6f631_JaffaCakes118

  • Size

    12.4MB

  • Sample

    241125-g5amvsyqar

  • MD5

    99bd790593bc23873774f48cb8b6f631

  • SHA1

    c50de27c7e448042bfdf7b127799bc7e2938ad63

  • SHA256

    a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4

  • SHA512

    c70e97c269ee79d43a83bde7578cfa0904812f42f61e166f99ff98ff2f641dffda01cfb7acc6be44fb2dfbfb04cc217bae749f083906030285550c5e2a44c4f7

  • SSDEEP

    3072:iQA1TtRdQBPuEcbBNu28bMEqfCxn2kuIPe7epgDnESZ25jnE26nnipm0ul4p7fLO:iQA1BRCu93f8bMEoFkYUlUUsap8foX

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      99bd790593bc23873774f48cb8b6f631_JaffaCakes118

    • Size

      12.4MB

    • MD5

      99bd790593bc23873774f48cb8b6f631

    • SHA1

      c50de27c7e448042bfdf7b127799bc7e2938ad63

    • SHA256

      a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4

    • SHA512

      c70e97c269ee79d43a83bde7578cfa0904812f42f61e166f99ff98ff2f641dffda01cfb7acc6be44fb2dfbfb04cc217bae749f083906030285550c5e2a44c4f7

    • SSDEEP

      3072:iQA1TtRdQBPuEcbBNu28bMEqfCxn2kuIPe7epgDnESZ25jnE26nnipm0ul4p7fLO:iQA1BRCu93f8bMEoFkYUlUUsap8foX

    • Tofsee

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

    • Tofsee family

    • 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