Malicious PDF — malware analysis report

Static analysis result for SHA-256 58324b6c12388266…

MALICIOUS

PDF

43.6 KB Created: 2021-05-12 09:27:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f0936827c1c63ffee7a6b9ae41d51986 SHA-1: a49a636edf59ced7ad8430f9293c05523236aad6 SHA-256: 58324b6c12388266549cf28b792d00533da5bd464e9e25117ce5777865b961a5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free generators'. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-ad-game-hack, which is designed to lure users into clicking further malicious links. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/coin-master-ad-game-hack In PDF document text
    • http://halal-center.ru/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/roblox-devil_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://halal-center.ru/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://halal-center.ru/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://halal-center.ru/images/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://halal-center.ru/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://halal-center.ru/images/free-coin-master-hacks-no-verification_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004806.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4806 24328 bytes
SHA-256: 1d9e55ad84e713eb033ff94509084863c880fd74c5467977c07f8935e6c87727
font_01_sfnt_off00007fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC1 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8973 17720 bytes
SHA-256: 77208d2129117d0f3040350cb22de09e5551afc22e9e1407d0b1c547858a443d

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