General

  • Target

    c4fefd261e956faeb02c99c55eef2ad5

  • Size

    13.8MB

  • Sample

    240313-e857tsch2y

  • MD5

    c4fefd261e956faeb02c99c55eef2ad5

  • SHA1

    70b198489a3c7dd98818ec61f94e5054e064988b

  • SHA256

    a998fde5f82f852df97cef9e0d2ed596f46eeb509a37c0603c92f5629098fac8

  • SHA512

    b683e14d3fce4b326550fbebab62a81bf8f20a7b95093d000070fd1500fc22cce73d48bbb340a6b87f87af4694273230f7175babe66931e1e4090b288b87e0d6

  • SSDEEP

    6144:/QyhgHfohrlzTzRRm9H+L0MOxhwOZsXPpmnqk+sRQU6tntntntntntntntntntnX:CHfohl3m9H+eTwhpIvJ

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      c4fefd261e956faeb02c99c55eef2ad5

    • Size

      13.8MB

    • MD5

      c4fefd261e956faeb02c99c55eef2ad5

    • SHA1

      70b198489a3c7dd98818ec61f94e5054e064988b

    • SHA256

      a998fde5f82f852df97cef9e0d2ed596f46eeb509a37c0603c92f5629098fac8

    • SHA512

      b683e14d3fce4b326550fbebab62a81bf8f20a7b95093d000070fd1500fc22cce73d48bbb340a6b87f87af4694273230f7175babe66931e1e4090b288b87e0d6

    • SSDEEP

      6144:/QyhgHfohrlzTzRRm9H+L0MOxhwOZsXPpmnqk+sRQU6tntntntntntntntntntnX:CHfohl3m9H+eTwhpIvJ

    • 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