Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cd5b8c60a6be06…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 22:52:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e77639607c900afa0dec47345599ef7 SHA-1: 7a1c3cde31665ebd355495564f46bcd588cd6495 SHA-256: 49cd5b8c60a6be06e8403722556af2c5ce6759cb6c517312a61fbc793dd1031c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.tw/app/479516143/minecraft-pe-hack-client-ios-game-hack. The document's content and heuristics strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites.

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-pe-hack-client-ios-game-hack In PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-shoulder-pets-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-no-sign-up-no-survey_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-cheat-nocliping_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/cheats-for-gta-5-on-roblox-w-are-the-daves_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/how-to-get-any-roblox-item-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/how-to-hack-deathrun-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/como-hackear-cuenta-de-roblox-facil_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/prison-life-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-generator-2021-robux-hack-no-survey-updated_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/wurst-115_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coolest-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/how-to-play-piano-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/free-coin-spin-daily-link-coin-master_GM406889139.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_off0000313d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313D 22260 bytes
SHA-256: 96bb8c672cdea7fec04bf87e1749cf752df5b78f07dc3b476fac55928c0c57d6
font_01_sfnt_off000062d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0 18396 bytes
SHA-256: 55df802e59d6610b41512bdd6f439a6918b0909585890d481d3eba566528df0e