Malicious PDF — malware analysis report

Static analysis result for SHA-256 186e963cae6568b5…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 19:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 37c730cef7c3163644837919d891274c SHA-1: 25661b3e27792a3a3c7a8ac4ad732b8d2f30345b SHA-256: 186e963cae6568b555862923b1f51dc4b37c172c73bfb401e56e3d6c5098201d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and pages offering 'free generators' or 'hacks' for popular games. The primary lure, 'Minecraft Account Hacked', is designed to trick users into clicking malicious links. The document's structure and embedded URLs strongly suggest a phishing or scam campaign aimed at users seeking in-game advantages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-account-hacked-game-hack In PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-robux-script_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/code-free-robux_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/hacks-to-get-free-robux_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFE 21752 bytes
SHA-256: 62481b50a33c56c222a4b80f0d62d7fcdb12e4816e432cfd9d5acd9cfd28bea7
font_01_sfnt_off00005db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 18484 bytes
SHA-256: 5dd05c9cb448aa3988e40803526fd1466b4ff4df0b75d5f1fead4c9123013b57

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