Malicious PDF — malware analysis report

Static analysis result for SHA-256 940648354881620d…

MALICIOUS

PDF

46.1 KB Created: 2021-05-18 03:10:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f08d2c38d66581e0e23ed3a9f5f0b1f0 SHA-1: d2b2993001c7b097a2a26d7a19f857fcaaa4eadf SHA-256: 940648354881620d25d285f06ee45c4ec8ecdbb904203ca13d65e85a2d5206d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body and heuristics indicate a lure to download or access content from these malicious URLs. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-java-edition-download-free-game-hack, which is presented as a download for 'Minecraft Java Edition'. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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-java-edition-download-free-game-hack In PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://rightlead.com.tw/image/data/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CDE 25368 bytes
SHA-256: b7281fb0019c0177c839e253e7cd04ea68a65dda964acad049324d19855c8b53
font_01_sfnt_off000086db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DB 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000090c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90C5 18572 bytes
SHA-256: b44bcce2d8515c0d099a66814c088ed689798a3dbc3c1364cf14b7c888151b67

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