Malicious PDF — malware analysis report

Static analysis result for SHA-256 624e23efeaba3f2c…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 02:26:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: fd4880a50e252f68e182c018d6cf013c SHA-1: db01bc65687b287ec4624508c4f108565df0672d SHA-256: 624e23efeaba3f2c55df2d28315d90334d538b63307bbd5abc5f9dc43598d969
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-bedrock-hacks-windows-10-game-hack In PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/whats-robux_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/minecraft-items_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/krnl-download_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-glasses-code-to-get-for-free_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/get-free-robux-without-doing-anything_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
stream_004_off0000538a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x538A 24568 bytes
SHA-256: 13e2bd4eac090e5092ad107fa2abcd63923c786a02fb77c8d209f267b1a5bcc4
font_01_sfnt_off00008be0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE0 18908 bytes
SHA-256: 18cbca0e50f7f5b28a778cfbd569d1baac665ff56cf18fe3f86cb3ac4da3e820

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