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

    300KB

  • Sample

    230206-zle3cafg99

  • MD5

    8ba26140aec7702f27a18eb7e9238fe9

  • SHA1

    3e5b466368a5077dc9b938ea45642331986f8827

  • SHA256

    e764480dd6acba37e913e3e907d44f5f912c56c067caf5118101aaa12445bbbd

  • SHA512

    eb48d8a92dd494fc421f42910f9185eae2464e97b1c2932f76aa97810dded8ae9f007e81ad5cdb43b58bd08509efa1e4c1b697f098008e1887086be37bbd5d79

  • SSDEEP

    3072:CRwb6b2PyLhUGRG/ukjNP99fTP5YTt/BuQjiMTE5B5Eafj:Cy1PyLW1WkjNV9fL2TFBuQj9wEa

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      300KB

    • MD5

      8ba26140aec7702f27a18eb7e9238fe9

    • SHA1

      3e5b466368a5077dc9b938ea45642331986f8827

    • SHA256

      e764480dd6acba37e913e3e907d44f5f912c56c067caf5118101aaa12445bbbd

    • SHA512

      eb48d8a92dd494fc421f42910f9185eae2464e97b1c2932f76aa97810dded8ae9f007e81ad5cdb43b58bd08509efa1e4c1b697f098008e1887086be37bbd5d79

    • SSDEEP

      3072:CRwb6b2PyLhUGRG/ukjNP99fTP5YTt/BuQjiMTE5B5Eafj:Cy1PyLW1WkjNV9fL2TFBuQj9wEa

    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 Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Discovery

        Execution

          Exfiltration

            Impact

              Initial Access

                Lateral Movement

                  Persistence

                  Privilege Escalation

                    Tasks