Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e9153acb8e7ecb6…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 23:02:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6ee5c4762fee9cb1ea7d47c309aaa2c SHA-1: ce1e14cf6e1f3c6648a7e97d047779e3527244b8 SHA-256: 9e9153acb8e7ecb6dec436d7310291f6c2f41bb5ed039a7a4519e306fccb7a8d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on what appears to be a 'free generator / game hack'. These links redirect to malicious infrastructure, specifically the URL https://netcdn.xyz/app/406889139/free-coin-master-spins-2021-link-game-hack. The presence of these malicious links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/free-coin-master-spins-2021-link-game-hack In PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/simplysarc_GM479516143.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/roblox-svg-free_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-robux-generator-no-human-verification-or-survey-2021_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
stream_003_off00004b13.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B13 25032 bytes
SHA-256: 4c080475a09b4eaa91fe52840853db0ab8c8730125e257b3d6e4a405ae4497cf
font_01_sfnt_off000083ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AC 18456 bytes
SHA-256: 5afa98feccd95d8eb179cf82941ba5e9245b2aa88804d11c8626ac43caff3152

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