Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a7f3ad90772d9d…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 18:18:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a461c85e10d612e234ff63ecc677a0d2 SHA-1: bc2eaa769340cb9871c79f535ea29ab2cf192537 SHA-256: 48a7f3ad90772d9d74f5288b1ab2452cc0bce51706835d907856cac44c4be694
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary link, http://netcdn.co/app/431946152/free-candy-song-roblox-id-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.co/app/431946152/free-candy-song-roblox-id-game-hack In PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/javascript-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/store-empire-beta-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-noclip-in-roblox-without-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hack-des-robuxs_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-loads-of-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-make-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/non-sans-diamond-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-client-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-daily-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/gaming-app-cheats-com-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hacking-someones-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hacking-mad-games-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/fort-hood-texas-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/800-free-robux-ad_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_off00002f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5E 22684 bytes
SHA-256: c8f97802e579efe9ec0a54c04572fda3c649dbdd8245b8f3f62d5678f88e27a3
font_01_sfnt_off00006236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6236 19004 bytes
SHA-256: 1ac3d2c66c635d7c59ec5f3ea911979450b83dabd6f6cdbd2b9c741f3704ba9f

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