Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee8316a9b97bdc1c…

MALICIOUS

PDF

41.7 KB Created: 2021-05-18 01:25:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0bf153a0436bcc8f9051838c6876c200 SHA-1: 1dcff9619f374d7fbc84b7f176abdcb0b692dc20 SHA-256: ee8316a9b97bdc1c213a0836613c1d708e0b3191dc9140487505c74cf9d68765
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' redirector. The embedded URL, https://netcdn.xyz/app/406889139/free-coin-link-coin-master-game-hack, is likely a lure to trick users into clicking, leading to a malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

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/free-coin-link-coin-master-game-hack PDF link annotation
    • https://www.smartitbg.com/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/roblox-source_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.smartitbg.com/images/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://www.smartitbg.com/images/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.smartitbg.com/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.smartitbg.com/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://www.smartitbg.com/images/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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_off00004754.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4754 25496 bytes
SHA-256: 611e1b02ed085eef38cf83de825a4b6d1ddff05b1afe2967321f2319c4f9396a
font_01_sfnt_off000081c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C1 17880 bytes
SHA-256: 0625e4176a7f53d001741f6455d720615efffd3608056e1f92d89c9c6799a538

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