Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    299KB

  • Sample

    230207-c61s8acc4y

  • MD5

    f39c23e01b50e97b9be6b2eee432e696

  • SHA1

    0bf245d40e951083f47298a57ae5f6ff1a8c917f

  • SHA256

    60c32223f5aeff7391c5d42a614967742da61c2379b52c50934b03f91b35e897

  • SHA512

    cba535e1544b8b159f20199f4b1fc10848c8c724973c65efb8cbe47ed2915b3791d138181aa6e2336e662769775e9fe45ac36d9f3b3cdb2ef226034e3277a7a4

  • SSDEEP

    3072:/Pb6b6BLo5nRmQ+3wM2ABSuq6Y6eiiDRbgvisCSnWuQjiMTE58NfRa5D:HpBLo5UQAwMLLnDmRbgviPuQj9HRa

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      299KB

    • MD5

      f39c23e01b50e97b9be6b2eee432e696

    • SHA1

      0bf245d40e951083f47298a57ae5f6ff1a8c917f

    • SHA256

      60c32223f5aeff7391c5d42a614967742da61c2379b52c50934b03f91b35e897

    • SHA512

      cba535e1544b8b159f20199f4b1fc10848c8c724973c65efb8cbe47ed2915b3791d138181aa6e2336e662769775e9fe45ac36d9f3b3cdb2ef226034e3277a7a4

    • SSDEEP

      3072:/Pb6b6BLo5nRmQ+3wM2ABSuq6Y6eiiDRbgvisCSnWuQjiMTE58NfRa5D:HpBLo5UQAwMLLnDmRbgviPuQj9HRa

    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 v6

Tasks