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

    230207-ak2saage98

  • MD5

    fe041a63df2b9558f2247cb6f07f97bf

  • SHA1

    b772f20c7ea8d3655e64717bdc82cbd669d7ef65

  • SHA256

    585707b6537eb783c58cde2b84c84a7741eb129b885aba9ff7822c2345f39362

  • SHA512

    c86151847fc94b2b4bb4b6cfd0aecb78228afd34b2ec3003fa14dcb7d9259ea282e6677e08648f9fd93d273b2cad27742d0da0fd684268fc636ca5b64b609656

  • SSDEEP

    3072:8Lb6bfTL45RmziYvPtd7Sj4yprPD0uQjiMTE59W2Hva5D:4QTL4+Oy7orIuQj9UHva

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      300KB

    • MD5

      fe041a63df2b9558f2247cb6f07f97bf

    • SHA1

      b772f20c7ea8d3655e64717bdc82cbd669d7ef65

    • SHA256

      585707b6537eb783c58cde2b84c84a7741eb129b885aba9ff7822c2345f39362

    • SHA512

      c86151847fc94b2b4bb4b6cfd0aecb78228afd34b2ec3003fa14dcb7d9259ea282e6677e08648f9fd93d273b2cad27742d0da0fd684268fc636ca5b64b609656

    • SSDEEP

      3072:8Lb6bfTL45RmziYvPtd7Sj4yprPD0uQjiMTE59W2Hva5D:4QTL4+Oy7orIuQj9UHva

    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