Malicious PDF — malware analysis report

Static analysis result for SHA-256 56bdd6f0a0f0fbec…

MALICIOUS

PDF

47.4 KB Created: 2021-06-02 10:03:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 202eae422ab53daeccb6e4ce13882580 SHA-1: 7b0515ed30d2a55f614341b436d5caac3a9ec225 SHA-256: 56bdd6f0a0f0fbec874bbd8e9d2db7a21623c46d998718adb7ca6cfba96a7dc0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The primary lure URL is https://netcdn.xyz/app/431946152/free-robux-copying-and-pasting-easy-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering tactic to drive users to potentially malicious websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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-copying-and-pasting-easy-game-hack In PDF document text
    • https://newenglandafs.com/images/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
    • https://newenglandafs.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005053.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5053 24732 bytes
SHA-256: bba8bfb6f7e27ea5b5d96b995f0b1743ef0921e1dd4839472cddcf08c138d10e
font_01_sfnt_off0000895d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x895D 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000930c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930C 19436 bytes
SHA-256: ffd2ad648f36aba28a9bec70361b661c7b3703430596bf37fe38565be274522f

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