Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe14473b839b587…

MALICIOUS

PDF

41.2 KB Created: 2021-05-19 00:17:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8086e7cf36d32995deb0b9412b8c3c0b SHA-1: d41770d6b1d492e8f52dff5f98de75a734acdb56 SHA-256: bbe14473b839b58786ad2f6887a20daa1d72a036eab4071b7fe1c7b42e95a87e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to a known malicious domain, masquerading as a generator for game currency or hacks. The document body, though partially corrupted, contains text related to 'Free Spins Coin Master Generator' and a URL pointing to malicious infrastructure. This indicates a phishing or scam attempt designed to redirect users to potentially harmful sites.

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-spins-coin-master-generator-game-hack In PDF document text
    • http://repository.ummy.ac.id//repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/roblox-hack-download_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_off0000487c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487C 24252 bytes
SHA-256: 3bc5fab1ab19f51c7fd7a470026c71b8bd6eb08450c8a3414dc5238624849915
font_01_sfnt_off00007fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE8 17884 bytes
SHA-256: 4dbd7a0cfee3c9b81196055844221830545f0b5886b4093cfa91146119426c66

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