Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de7a961fc78d9b4…

MALICIOUS

PDF

41.6 KB Created: 2021-05-15 11:19:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7ed5ab06914c77ff95afba48f2d7a9c0 SHA-1: 6a83d41384432ecd762e0effe34d8e98e8439d2d SHA-256: 4de7a961fc78d9b4c61bafb8d45db125c802c63677b86eb11527fa0502c0cd69
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and sites offering game hacks or free currency, indicative of a phishing or scam lure. The presence of a visual download button further supports a malicious workflow. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

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/479516143/minecraft-free-online-games-game-hack In PDF document text
    • http://samavetpharm.com/userfiles/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-no-generator_GM406889139.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_off00004a2c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A2C 24152 bytes
SHA-256: acfa3f7b262847635cad7a601315373d9c1bcd4c455a8052386583e676a8c4cf
font_01_sfnt_off00008169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8169 17900 bytes
SHA-256: 4b77619cba729584a62e96e7fd69b59749ae88ba583596c01091ec51b146d7ca

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