Malicious PDF — malware analysis report

Static analysis result for SHA-256 93fd742aba103e24…

MALICIOUS

PDF

43.9 KB Created: 2021-05-16 07:31:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a9855a82ab9a899cf67d3c520a8f2ec8 SHA-1: 2b5d1957d976bde5760b9fa80ab2a03a03f876e7 SHA-256: 93fd742aba103e24c4cc22bb56174700a0351d43030dc37da4d381db6f5955c0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a "free generator / game hack" lure. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it links to known malicious redirector infrastructure. The document body contains obfuscated text and multiple URLs, suggesting an attempt to disguise the malicious redirection. No scripts were extracted from this sample.

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/406889139/free-coin-master-app-game-hack In PDF document text
    • https://www.dossiermedicina.it/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.dossiermedicina.it/images/is-minecraft-free-on-ps4_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_off000049d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D6 29772 bytes
SHA-256: 895a551597640d298197ca73cf3dea22b8afb036379aee5b0c734fe8f68a91e6
font_01_sfnt_off00008aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAF 17884 bytes
SHA-256: c91e1147911e8cb6a9d887c860ea45f4a2f31ad94033e64533e9785798adbab1

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