Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25db68fdc28b307…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 03:08:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: eec7ebd9b6f623288606239372f7cc22 SHA-1: a46bc91d43b57e2a5a799ea7b95e76195633feb4 SHA-256: e25db68fdc28b30796316bb33a9c6def9f4ae08e5ba5d7e0571257ac23070c88
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-32-hack-apk-download-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-ez-ways_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-roblox-exploit-lua-script-executor-free-no-virus-please_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-robux-wok_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-with-the-command-prompt-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/www-roblox-com-free-games_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-a-hacked-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-adopt-me-hack-money-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/fly-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/rewards-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-cheat-engine-btools_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/gift-card-robux-free-2021-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-change-your-roblox-name-free_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-real-no-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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
font_00_sfnt_off000031ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EC 22916 bytes
SHA-256: 7c9009f47ded91cfd54234327e7784750a4f3c5f0a78a617fa49e6118ac4fc37
font_01_sfnt_off00006553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6553 19060 bytes
SHA-256: 7e2f41dedcb17568ebfc6fe304f190bc67df63000f1cc377c6ae2469b895e7f4

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