Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae4c74afd4e3bf12…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 05:03:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0c67b5271357b8596bc0a36a64517d5b SHA-1: c363ded8227fc9e455082e4d6352eea89363f304 SHA-256: ae4c74afd4e3bf12088f8daccf9b01d9591b82f0c028077330e6f1d1abc57cf5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and cheats. The primary link, http://netcdn.co/app/431946152/cheat-engine-codes-for-roblox-game-hack, is identified as a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt to direct users to potentially harmful websites.

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/cheat-engine-codes-for-roblox-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-jailbreak-hacks-2021-may_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/inspect-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-online_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-anti-cheat-video_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/wallbanck-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/como-hackear-en-roblox-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-generator-hack-2021_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_off000032ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AB 22208 bytes
SHA-256: 653946caeefa12dd5ab40d6bb3e1488cb8b4d1e9375c77c92b08da8c850fa37c
font_01_sfnt_off000063d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D9 19216 bytes
SHA-256: ff2b1cc28e7a7847ab7c1f83ca5824fc7a2c840be3f7497d637ac400cd8d257d

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