General

  • Target

    4dde768d26a6e6555a01cdbeb098e802

  • Size

    14.7MB

  • Sample

    231226-dbesyabbfn

  • MD5

    4dde768d26a6e6555a01cdbeb098e802

  • SHA1

    958235da452261025c3dbf14ee8f658aafba3338

  • SHA256

    7d02bb90e151603edbea65439269ce28c61eda6854fd61557eb99892f8807c85

  • SHA512

    82c60d467d6b53bd1c97ac30cd134921d0b174fd2982356044f5c7f4afdd12b76da1206b5e1280ed4ba596708cfecea6bd076163d06a5ce9e56a01c4c6370925

  • SSDEEP

    24576:MlxdvCcpOKCtBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBf:MlzOR

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      4dde768d26a6e6555a01cdbeb098e802

    • Size

      14.7MB

    • MD5

      4dde768d26a6e6555a01cdbeb098e802

    • SHA1

      958235da452261025c3dbf14ee8f658aafba3338

    • SHA256

      7d02bb90e151603edbea65439269ce28c61eda6854fd61557eb99892f8807c85

    • SHA512

      82c60d467d6b53bd1c97ac30cd134921d0b174fd2982356044f5c7f4afdd12b76da1206b5e1280ed4ba596708cfecea6bd076163d06a5ce9e56a01c4c6370925

    • SSDEEP

      24576:MlxdvCcpOKCtBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBf:MlzOR

    • 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