Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c2e3283e431742…

MALICIOUS

PDF

33.1 KB Created: 2021-06-29 17:46:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d1f7e0056bf56b429631c9c06fdcfd7 SHA-1: 1d4f0e616a46b1e8c9ca76b3eff5dc05a0fedb95 SHA-256: 36c2e3283e431742d442a7301083affc4e7736554f407376a044cba7e420e591
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/free-robux-greenlegocats123-game-hack. The document body text and embedded URLs suggest a lure for free game currency or hacks, which is a common social engineering tactic. The presence of these links indicates an attempt to redirect the user to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/free-robux-greenlegocats123-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/tiktok-free-view-links_GM835599320.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-use-cheat-engine-without-roblox-shutting-down_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/pokemon-go-free-64-bit_GM1094591345.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-bubblegum-simulator-cheats-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-cheat-in-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-all-free-packages_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-generator_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-loki-hack_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-free-gry_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
font_00_sfnt_off00002a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A49 22224 bytes
SHA-256: d59f7baa0c6a8a78f0c28d16feea29623b0f235b3930f546c18d0fec1a8f3cee
font_01_sfnt_off00005bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC3 19296 bytes
SHA-256: edd0a9ac28d561826a52d2af5544d917825293f90f7ba044dc81cbbac8250e2d

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