Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac478e56460a2b16…

MALICIOUS

PDF

45.0 KB Created: 2021-06-02 16:48:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9ba5fa30ba78171ba042cbc191e22d03 SHA-1: 8419668285c9f15b2266ff3dfbf1aff5e7c77655 SHA-256: ac478e56460a2b165b89195b331feeb8230351df9fe345302846276ba189c9d5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that redirect to websites promising game hacks and free items, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of malicious links and the lure suggest the document is designed to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/431946152/how-to-make-free-shirts-on-roblox-without-bc-2021-game-hack PDF link annotation
    • http://eurosystemssrl.it/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/simplysarc_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/roblox-speed-hack_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
font_00_sfnt_off000050c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50C4 24600 bytes
SHA-256: 3d28d64a0639a5d2c7003d2e44824a70bf2a61b22bf4499a8264014344d9d7ea
font_01_sfnt_off000088a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88A0 19836 bytes
SHA-256: 71bbfe367ccb123a36a0b406dcf15b5a65b5b1d149595dfaa1b0b91d1063ce80

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