Overview

overview

10

Static

static

3

8bcf8cc2c1...48.exe

windows7-x64

10

8bcf8cc2c1...48.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    8bcf8cc2c1f767e639cfd2de9ad3d548.exe
  • Size 288KB
  • Sample240112-mxtzesfcc7
  • SHA256 fd79a1b3b18fca2696c2c58f290a4dadb97e3cdcd6e98d14a63ac3f4a1f2e351
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

  • tofsee

C2

  • vanaheim.cn

  • jotunheim.name

Targets

    • Target
      8bcf8cc2c1f767e639cfd2de9ad3d548.exe
    • Size 288KB
    • SHA256 fd79a1b3b18fca2696c2c58f290a4dadb97e3cdcd6e98d14a63ac3f4a1f2e351
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • XMRig Miner payload

      miner

    • 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