Malicious PDF — malware analysis report

Static analysis result for SHA-256 126a1d09cba6d50c…

MALICIOUS

PDF

32.6 KB Created: 2021-05-16 14:09:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df535e72b670c2fa277c4258ae53b7b8 SHA-1: 84c47a606c94d132f8593a9c2a7521073552cffa SHA-256: 126a1d09cba6d50c77dc133005246a1ba41d08a77a7b58029726293c82387c47
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links that are flagged as malicious redirectors, specifically promoting 'game hacks' and free in-game currency. The primary URL, 'https://netcdn.xyz/app/479516143/how-to-get-minecraft-coins-for-free-game-hack', is presented as a lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack, likely intended to lead users to sites that may host further malware or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • 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.
  • 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/how-to-get-minecraft-coins-for-free-game-hack In PDF document text
    • http://rainbowbuddha.academy/images/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/my-robux_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49FA 24947 bytes
SHA-256: cdf7c5947320ec72a3783a9a28ff435f87a55504aa9ee0e3bee1397ec4165672

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