Overview

overview

10

Static

static

3

9dc0085f64...d1.exe

windows7-x64

10

9dc0085f64...d1.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    10f6b452781aec48a0f4498050be97f3c00397952081c79503be99d566689d79
  • Size 145KB
  • Sample240417-rj3fvsbd37
  • SHA256 10f6b452781aec48a0f4498050be97f3c00397952081c79503be99d566689d79
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

  • tofsee

C2

  • vanaheim.cn

  • jotunheim.name

Targets

    • Target
      9dc0085f64473ca82753f59552bae76c64b5165e72899d727cd18f4d1afbd9d1.exe
    • Size 233KB
    • SHA256 9dc0085f64473ca82753f59552bae76c64b5165e72899d727cd18f4d1afbd9d1
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistence

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks