Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Resubmissions

21/01/2023, 20:33

230121-zb71dadg7510

21/01/2023, 19:55

230121-ym4awsfd8y10

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General

  • Target
    file.exe
  • Size 196KB
  • Sample230121-ym4awsfd8y
  • SHA256 c91bf4aaf28e808358e4a8badd36c6ab884d90c8187267e229aae6069f079779
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

  • tofsee

C2

  • svartalfheim.top

  • jotunheim.name

Targets

    • Target
      file.exe
    • Size 196KB
    • SHA256 c91bf4aaf28e808358e4a8badd36c6ab884d90c8187267e229aae6069f079779
    • 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

    • 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.

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks