General

  • Target

    ac3366999fcb9a093c9aa8694c6c9c915c3539478efd08655893d26b1d61a86e.exe

  • Size

    291KB

  • Sample

    241124-ysbstsxjat

  • MD5

    1a6ce36ee783de5148f2c0817ac6dabe

  • SHA1

    fa957807a9fe6a0de8f959b3c67a3365eac569a7

  • SHA256

    ac3366999fcb9a093c9aa8694c6c9c915c3539478efd08655893d26b1d61a86e

  • SHA512

    6fd759a69ce43798a3b43efe578f36923f1e67a8f8969d6f593fd29d442c76d72632a6b8679b679deb6e3f62aa0577eeb13e3938182918adbf247ce2c2822305

  • SSDEEP

    6144:HbDiEbQtM055szCZb55JgXrSXuZet0yob7PANco+hOgw:UM450a55G7SXuZet0yob7Ro+Fw

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Targets

    • Target

      ac3366999fcb9a093c9aa8694c6c9c915c3539478efd08655893d26b1d61a86e.exe

    • Size

      291KB

    • MD5

      1a6ce36ee783de5148f2c0817ac6dabe

    • SHA1

      fa957807a9fe6a0de8f959b3c67a3365eac569a7

    • SHA256

      ac3366999fcb9a093c9aa8694c6c9c915c3539478efd08655893d26b1d61a86e

    • SHA512

      6fd759a69ce43798a3b43efe578f36923f1e67a8f8969d6f593fd29d442c76d72632a6b8679b679deb6e3f62aa0577eeb13e3938182918adbf247ce2c2822305

    • SSDEEP

      6144:HbDiEbQtM055szCZb55JgXrSXuZet0yob7PANco+hOgw:UM450a55G7SXuZet0yob7Ro+Fw

    • 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