Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aed6a1539372428…

MALICIOUS

PDF

43.1 KB Created: 2021-05-16 14:35:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fdab3a9629b64fc6e796f99835a35bbb SHA-1: e24e4a84d66fac605ebff633d4139f83f7689360 SHA-256: 8aed6a1539372428400158962782897679e9642ee5d0e501fc999ac8c36a9ef9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The primary lure appears to be a 'free generator / game hack' redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-robux-generator-codes-game-hack In PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/gain-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-verification_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/robux-hack-no-human-verification_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_003_off0000483c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483C 26528 bytes
SHA-256: ad210ff4d743e0eef5d822885a0a09d021ff48b465a2849936e2640fd80228b8
font_01_sfnt_off0000853e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853E 18520 bytes
SHA-256: a3c42500ab941ca6b3cc9f1b186676fd5f7f9f0c0249e27b539405b68f11e4ed

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