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

  • Size

    299KB

  • Sample

    230207-agyw8age84

  • MD5

    45745cc2b7e41ad2e663e73112e1d4eb

  • SHA1

    27a58c48caedeb235a046e8657c9f05df829a585

  • SHA256

    03b961537434ed16b110e1187856d6fd83887488126e6f36627beff091b1eb72

  • SHA512

    d40f981d7d7bdb8f60db4746f27cb7d4639b181f98e7c1664a8d8c37af95353491bb80a7c75557379e9138256e2398ac90b5e48d02665f11024b54a7d471f805

  • SSDEEP

    6144:C/SlLSuD8yVmbWuM3XPbRO0uQj9JKO48a:CKlG/ykipXI0ljK8

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file

    • Size

      299KB

    • MD5

      45745cc2b7e41ad2e663e73112e1d4eb

    • SHA1

      27a58c48caedeb235a046e8657c9f05df829a585

    • SHA256

      03b961537434ed16b110e1187856d6fd83887488126e6f36627beff091b1eb72

    • SHA512

      d40f981d7d7bdb8f60db4746f27cb7d4639b181f98e7c1664a8d8c37af95353491bb80a7c75557379e9138256e2398ac90b5e48d02665f11024b54a7d471f805

    • SSDEEP

      6144:C/SlLSuD8yVmbWuM3XPbRO0uQj9JKO48a:CKlG/ykipXI0ljK8

    Score
    10/10
    tofseeevasionpersistencetrojanxmrigminer

    • 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