Malicious PDF — malware analysis report

Static analysis result for SHA-256 782b0360b3366c62…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 16:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 407ac640b39f9e4ffca2417e21f521a1 SHA-1: 9edc18556f65e6709e5c01889e5365c4c48541be SHA-256: 782b0360b3366c62dadb96a1cf87a0f6e8e652d7bb3bcbdcc28182654020af98
160 Risk Score

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/406889139/free-money-links-coin-master-game-hack In PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-alt-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-pet-in-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-how-to-get-clothes-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/easy-robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-hack-com_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-character-maker_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-do-you-get-a-free-dominus-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/robux-earning-websites_GM431946152.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_002_off00003151.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3151 22624 bytes
SHA-256: d1147d6bfd8fb75ee97379782cd85490a90171afac8d7a82d7c097aa61de1562
font_01_sfnt_off000063a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A5 18348 bytes
SHA-256: d1e3fa9b345845750c3361cd5ba2c4bb407e1fff22b4faa08696458df1a8669f

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