General

  • Target

    98f17302b4e156486845c83ad422c6aa.bin

  • Size

    141KB

  • Sample

    230411-bssd9ahg39

  • MD5

    ab0c7ed3b19e69657fe0f930c5baa504

  • SHA1

    1ed27482b15f9bfcefaf9d5e2c4783c5672bda75

  • SHA256

    66f93e0301309aac2b38f3b904095162cb7c62591f22e8579074ce29cee69a9d

  • SHA512

    6ae1040c7d2a57a5901f8871b4718858f6799fb68afaabd49deea41b190093ded4c72fd2837d595ec8b28338d855b3ec00cbba6f2f2c29d7bf892201d7601968

  • SSDEEP

    3072:ZVMymocimjcr8FB7Alg4fwY+4pBy+Y5IolNXMPAAdt2mcyjVE94Xn1gJtK6Dhm:ZeymocimjcrEeljd+4pg/58t2mcyjlXp

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      36949fde2e1880e8c86de360f71c2302c67cd453840ffd43fc1288234f3c6aa1.exe

    • Size

      201KB

    • MD5

      98f17302b4e156486845c83ad422c6aa

    • SHA1

      83ffb44c4843b0ca414450644623897b1ffaed09

    • SHA256

      36949fde2e1880e8c86de360f71c2302c67cd453840ffd43fc1288234f3c6aa1

    • SHA512

      660e78e8419e16d74b2f7a527608f14a071e2d69f8b260090ce943b3d05d6113ec67e7a698bdea17ee0431a68ce9830d28398813cb520cacd8f77950d61582a5

    • SSDEEP

      3072:HiGTXJoDM4OArNhCqW53oPP/zRsMPVFuZmj8peC5OC7h6Bu4e:CU6o4OGNYoPP7zVF4mj8S0

    • 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 v6

Tasks