Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdadb47550d73fe7…

MALICIOUS

PDF

43.7 KB Created: 2021-05-11 18:02:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 32eee01123f2e56bcd64e722dac9544b SHA-1: 158f3ed1e82f4454f3ada810514af68b9dc29809 SHA-256: cdadb47550d73fe760280bf8c532736846b29bcaf65929d1e24dcff542c6de70
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game items and Windows 10, directing users to a URL that appears to be a redirector for malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded link likely leads to a second-stage download or phishing page, typical of a spearphishing attachment campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/479516143/do-you-get-windows-10-minecraft-for-free-with-java-game-hack PDF link annotation
    • http://beautyforyou.fr/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-game_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-promo-codes-for-coin-master_GM406889139.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
stream_003_off00004ac7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC7 25528 bytes
SHA-256: 120cbd726af412700b8a161a706d247a81086a37fbfe7fedc8eef12e3aac441a
font_01_sfnt_off000084eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EB 19440 bytes
SHA-256: 4f6116c3ae1f04b8b6121a0b0d1b9b447449cf69c412c2009f2ae6d1f9a529b7

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