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-b2y86agh85

  • MD5

    554879592dac3efc1711fab6d3af54ea

  • SHA1

    e26c2828e08ac6f03f3061bdb22505bbcb41c99d

  • SHA256

    cf08cb921f0bfdf2876df5f4691b06233515e150be0456b7d3ee5dee5e9d55e4

  • SHA512

    f05f5d6fa132cc0180d3ee35d77ff1671c1ffde11b084fb9fa47592f7a20fe7c2b9fea2775286027b4c76bf4473e992c274743000f622b1b06f57eb9d5783151

  • SSDEEP

    6144:nW/LvlQkaDpjZ+mg5exp7sCkuQj9+Rrga:W/LS3Dpd+mp5klj2U

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      299KB

    • MD5

      554879592dac3efc1711fab6d3af54ea

    • SHA1

      e26c2828e08ac6f03f3061bdb22505bbcb41c99d

    • SHA256

      cf08cb921f0bfdf2876df5f4691b06233515e150be0456b7d3ee5dee5e9d55e4

    • SHA512

      f05f5d6fa132cc0180d3ee35d77ff1671c1ffde11b084fb9fa47592f7a20fe7c2b9fea2775286027b4c76bf4473e992c274743000f622b1b06f57eb9d5783151

    • SSDEEP

      6144:nW/LvlQkaDpjZ+mg5exp7sCkuQj9+Rrga:W/LS3Dpd+mp5klj2U

    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