Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d114bf483617b8f…

MALICIOUS

PDF

35.5 KB Created: 2021-07-02 07:57:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e7bcab0edd6d780382ef6266af6a54f SHA-1: 5523fe5469ad0a1eea133fa2541de1bcef2d941f SHA-256: 9d114bf483617b8f0dd46604ba7d136eb24038d094d0684476c84149968cb6a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into downloading potentially malicious files or visiting redirector sites, masquerading as game hacks and generators. The heuristic firings indicate the presence of malicious redirector infrastructure and a general classification of the PDF as malicious. While no scripts were explicitly extracted, the embedded URLs and the nature of the lures suggest an attempt to lead the user to a second-stage download or exploit.

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/roblox-games-to-play-for-free-game-hack In PDF document text
    • https://luyenthitoanpro.com/public/upload/files/free-roblox-rap_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/how-to-get-anything-on-catalog-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/robux-tool-hack_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/roblox-robux-generator-no-hack-2021_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/free-robux-free-buying_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/no-pants-roblox-free_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://luyenthitoanpro.com/public/upload/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3297 22652 bytes
SHA-256: cca5041f40e515145d5caa1ef57c53cf245b615dc59ef2489589d59549d1d51a
font_01_sfnt_off00006541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6541 19244 bytes
SHA-256: a82be5b5343ca8d3a33473f1eeb2fa03f79ce6a168b6328d177a0c05b35390bb

Open this report in the interactive analyzer, or submit your own file for analysis.