Malicious PDF — malware analysis report

Static analysis result for SHA-256 67fa3b2ec9de1498…

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 11:34:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 182a8ad03d1434f92b11075f65d766ad SHA-1: da44b945d4646d655a8e8668265130240970c478 SHA-256: 67fa3b2ec9de14986c53ff9373336e5d2d65a4763837b1f740ec69949c84a300
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, including one identified as malicious infrastructure. The document body and embedded links suggest a lure for game-related cheats or generators, likely leading to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/online-coin-master-hack-here-game-hack In PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/make-robux_GM431946152.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/master-hack-coin_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/oginject-co_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • https://radiocaxias.com.br/portal/imagens/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.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
stream_003_off00004d4a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4A 26032 bytes
SHA-256: 8a0ed37500a55467f58697a60cf48335052154818b9fdc4a6ae40daa213e45ea
font_01_sfnt_off000086c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C8 17788 bytes
SHA-256: d889680f8fc551e7ec9bfaa07df1fa67f8392890936cf776d8bfe8a659ce498a

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