Malicious PDF — malware analysis report

Static analysis result for SHA-256 586c509176e77a73…

MALICIOUS

PDF

36.6 KB Created: 2021-06-27 02:34:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cf91ddb66e7c9afd3263ad5e9d7ec75b SHA-1: a4c4a3500e18cfa192178b9691ab1729657d6c89 SHA-256: 586c509176e77a7350556baea38683d0fb353e554f5cda66d5bb133643956592
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to a known malicious redirector, http://netcdn.co/app/431946152/robux-pc-hack-game-hack. This redirector is likely used to serve further malicious content or phishing pages. The document's content and heuristics strongly suggest a lure for game-related cheats, which is a common social engineering tactic to trick users into downloading malware or visiting malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.co/app/431946152/robux-pc-hack-game-hack In PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-hack-de-cuentas_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/island-royale-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/speed-hack-download-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/map-free-robux-card-code-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/9-billion-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-hacks-free-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-cheat-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/robux-free-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-brick-cars-cheat-codes_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/thatscheating-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-play-roblox-liberty-county-for-free_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-not-get-kicked-for-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/future-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-no-human-varucashe_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/hack-para-roman-aegyptus-roblox_GM431946152.pdfIn PDF document text
    • https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-get-robux-money-for-free_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_off000037cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37CF 22716 bytes
SHA-256: 3e805cae368e348506bb5c800e8c43be3f12d3a2a3a0ad09cd6dc95bf3d40285
font_01_sfnt_off00006aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA8 18876 bytes
SHA-256: d292a5d32f36a187ef9b2286f69c66e13cc256655eda518711e9d9a8023a0cbc

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