Malicious PDF — malware analysis report

Static analysis result for SHA-256 024599c52717695a…

MALICIOUS

PDF

33.9 KB Created: 2021-07-01 12:33:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8bdc890325a9331e3d18c627d54a5052 SHA-1: 347dc18e487b54d1db5764c487e21186e6a3ca91 SHA-256: 024599c52717695a765c314b88ba2ad98607e600d521f1613c51286d22abc956
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier strongly flagged this PDF as malicious. The document body and extracted URLs indicate a lure for game hacks and cheats, specifically mentioning Roblox and Coin Master. The presence of embedded URLs suggests an attempt to redirect the user to download malicious content, likely a second-stage payload.

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/hackaron-com-roblox-game-hack In PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/pokemon-go-free-7-day-streak_GM1094591345.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-robux-pastebin-hack_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spins-for-coin-master_GM406889139.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
font_00_sfnt_off00002f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9D 21864 bytes
SHA-256: 488047ba070978a74f431758254c2a2922481b14c35517f3d2fdc3d1031eecd1
font_01_sfnt_off00005fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB1 18916 bytes
SHA-256: 1d3f4139d5f036f6fec00e2cca580a91f0c996862a945a05494b2b909ba67852

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