Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da196a2c92fd41…

MALICIOUS

PDF

43.8 KB Created: 2021-05-14 07:53:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 23eb2a4fc889949b72f8ed8d4f9dab82 SHA-1: 064929b3f1ce3d97f981f6ce139b2a84934b9286 SHA-256: c5da196a2c92fd41103c8aea4de4229ecd2e450effbc7cc89d355297c727b002
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/479516143/minecraft-thumbnail-maker-free-game-hack In PDF document text
    • http://familymn.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://familymn.com/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/robux-best_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/earn-robux-online_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/free-roblox_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/roblox-zone-free-robux_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_off00004a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A6A 28736 bytes
SHA-256: 1e30315dc948eac1be3d403aa47c30cfb035bab4d74912dbb960eb411836785a
font_01_sfnt_off000088a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88A6 18536 bytes
SHA-256: 131fc1cc1290202989dcb25b40ce54b3d23585dd48ca8512db4c52c882d58c16