Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    file.exe
  • Size 153KB
  • Sample221113-2q4bvadd83
  • SHA256 bfc2550f9e4a3872309610aa18d0cf0a5c940e8b5f80dbabdd1fb4f56bf583eb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

  • tofsee

C2

  • svartalfheim.top

  • jotunheim.name

Targets

    • Target
      file.exe
    • Size 153KB
    • SHA256 bfc2550f9e4a3872309610aa18d0cf0a5c940e8b5f80dbabdd1fb4f56bf583eb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    tofseeevasionpersistencetrojanxmrigminer

    • Tofsee

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

      trojantofsee

    • xmrig

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

      minerxmrig

    • XMRig Miner payload

      miner

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks