Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ea4b3b15c896cc…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 18:54:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a1fbfe654f5fd3b0070dc8ea702cbd2c SHA-1: 101cabc9002570b00ce4566e68a8c30c2401a3e2 SHA-256: 96ea4b3b15c896cc8ac765866cc017fb0d5ed7faf18a8ac09bcd4803dfbff3b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a visual download lure, strongly suggesting it is designed to trick users into downloading malicious files. The ML classifier also flagged this PDF as malicious. The primary IOC is the URL http://netcdn.tw/app/479516143/minecraft-ps4-free-game-hack, which is likely the distribution point for a secondary payload.

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-ps4-free-game-hack In PDF document text
    • http://fkunismuh.org/perpustakaan/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-1m-robux-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-roblox-lua-scripts_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-download-a-roblox-jail-break-hack_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hack-anti-ban-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-roblox-exploit-scripts-for-executor_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-scam-copy-and-paste_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-rare-hats-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-without-getting-banned_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/youtube-nicsterv-free-robux_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_off0000329f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329F 22440 bytes
SHA-256: 41cd232a53d5ccab42e78ac1960f627c12f9b6106d37b782b6680b58f15b9c32
font_01_sfnt_off0000649d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649D 18072 bytes
SHA-256: 07bff6b201fefb5b79bda7bcb703d65895bb3fadc7074254717ea8518f49b268

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