Malicious PDF — malware analysis report

Static analysis result for SHA-256 79330cfbd8f7868d…

MALICIOUS

PDF

34.1 KB Created: 2021-07-02 06:55:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 32db5e0bf9e69acea547be6fe956dd67 SHA-1: 59f90586a4b208929dc2eeafc18cc230fadd53ff SHA-256: 79330cfbd8f7868da727048f228fb0d9953502c427cca720cda98e88600c07e7
160 Risk Score

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/how-to-pretend-to-hack-in-roblox-game-hack In PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-robux-codes-real-2021_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/roblox-money-cheats-2021_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/roblox-akaunts-free_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/pubg-uc-generator-no-verification_GM1330123889.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/coin-master-map_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://www.e-starmagazine.com/uploads/files/how-to-hack-roblox-passwords_GM431946152.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_off00002ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE7 21992 bytes
SHA-256: 9d80ad38a5e27b3dc483d87b532fe8511c0690895657800b8f5b5802ab56d1e6
font_01_sfnt_off00005f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F85 19252 bytes
SHA-256: f7e83e0205296f574af3d170663531cf4d10febc5fd6b2729f9f681bee197f83

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