General

  • Target

    75e5182964f42c0b0761107ea401338d

  • Size

    10.5MB

  • Sample

    240126-anag7sacb3

  • MD5

    75e5182964f42c0b0761107ea401338d

  • SHA1

    1095924492b72640c229e9712b69fdbb94681d8e

  • SHA256

    4cac9e3b3d8e0446cbbe43456e8b44bf8b4cd0ac99f9c00552904c623fb03e3c

  • SHA512

    3230af9491cfee8a4358ba465f928d18b3c9c869af36501eaf228b6f6d15c0cd380609254ce12e4ef2585fd2828e31b4e626fea11b33b23bf45a66f2a3fc6b0a

  • SSDEEP

    98304:ivjOF//////////////////////////////////////////////////////////H:0

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      75e5182964f42c0b0761107ea401338d

    • Size

      10.5MB

    • MD5

      75e5182964f42c0b0761107ea401338d

    • SHA1

      1095924492b72640c229e9712b69fdbb94681d8e

    • SHA256

      4cac9e3b3d8e0446cbbe43456e8b44bf8b4cd0ac99f9c00552904c623fb03e3c

    • SHA512

      3230af9491cfee8a4358ba465f928d18b3c9c869af36501eaf228b6f6d15c0cd380609254ce12e4ef2585fd2828e31b4e626fea11b33b23bf45a66f2a3fc6b0a

    • SSDEEP

      98304:ivjOF//////////////////////////////////////////////////////////H:0

    • 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