Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fea16d9a6b1d50b…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 15:44:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 730ce35d267dd474324b6c4565ea2280 SHA-1: 183ef661bcd2a0d0ec369fb044d34ce370f483fc SHA-256: 2fea16d9a6b1d50be7486d6af9dee50da5f2e68869bb121888bfedecb04d7f71
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links disguised as game hacks and free currency generators for popular games like Roblox and Coin Master. These links, such as http://netcdn.co/app/431946152/if-everything-on-roblox-was-free-part-2-game-hack, are designed to lure users into downloading malicious payloads or visiting phishing sites. The ML classifier strongly indicated maliciousness, supporting the observed lure tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/if-everything-on-roblox-was-free-part-2-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-20-left-arm-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/10-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3239 21996 bytes
SHA-256: 7bb9c72f6a907ff80df846c9cfa74405cd9acd084ae65631dc75ee8a33b7f2ee
font_01_sfnt_off000062b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B7 19812 bytes
SHA-256: 8d679bf02e6c4bdce8c11d6586a46c5f168772abd54fe789b432c2c297019691

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