Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e7c5365530a80d…

MALICIOUS

PDF

45.5 KB Created: 2021-06-09 12:15:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 16e2ef6756ac830144a852c92062f222 SHA-1: 6ce4dca4f4e727d7ad1653ba28846c64916cfde1 SHA-256: 15e7c5365530a80d8865a90ae23c30824903037535e92c2b46cbee4b9f255407
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector. The primary lure appears to be related to 'game hacks' and 'free generators', aiming to trick users into clicking through to potentially harmful sites. The document body and embedded links suggest a phishing or scam attempt, likely leading to further malware or credential harvesting. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/plugin-free-robux-download-pc-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-on-ipad-mini-4_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/1-million-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-funny-hacking_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00004f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F08 26428 bytes
SHA-256: 7c69cd8080b8edb285b83bd1e45e0ee668a804de234970cdccc4561d407b8b0a
font_01_sfnt_off00008c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1F 19384 bytes
SHA-256: 3f3e71a07659bb1bbd9f6d88c250900baaaa67a3acf619fa2bf31c97634eb3d3

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