Malicious PDF — malware analysis report

Static analysis result for SHA-256 e016c9778f85acd8…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 06:29:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 26274633b1d2bde5121db049ad59e894 SHA-1: abbe226a1d3649fb83b9dee7d6b3114d8bcbb69e SHA-256: e016c9778f85acd8d436d4de2649339b56e71ee8ff736337b7c1cce51b41b909
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 0.9980

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.tw/app/406889139/coin-master-hacking-news-game-hack PDF link annotation
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/slurp-hack-roblox-download_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-no-survery-generator_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-hack-someones-acconut-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/arsenal-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-roblox-shirt-templet-download_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-hack-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/tiktok-free-view-iphone-wallpaper_GM835599320.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-aimbot-hack-v3rmillion-phantom-2021_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-survey_GM431946152.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_002_off00003326.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3326 22836 bytes
SHA-256: 1c43f17f59f7dbe4ce8bcbb111e54ebbc17f07f273fca109a61e6e1ab4655edf
font_01_sfnt_off00006658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 18168 bytes
SHA-256: bb77fc8706ad2ff4235a27a959822ec7a66637ccfdb6a7abcad589d5b41188e7

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