Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb067fc314275456…

MALICIOUS

PDF

42.1 KB Created: 2021-05-14 19:42:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b2f74befb114e05d5b8617b7043af0bf SHA-1: c0e3f7f0aca8f715d4d7b7e19d9ca70a7b0a7c18 SHA-256: fb067fc314275456866cf7ff6472822383de56a0dba1ce60c784b63753d8354b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/how-to-log-out-of-coin-master-game-hack PDF link annotation
    • http://gavertrimmers.be/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/roblox-verification_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-coin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CF 25408 bytes
SHA-256: eedc6f3c17343183da901f4a7ae114b7d81eb9a1aeba6151b5df7a76c2d67991
font_01_sfnt_off0000829c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x829C 18140 bytes
SHA-256: 3138221b31ed8b6406c0e26913c361d842eb1c4d2714b685327af50e84741aa0

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