Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad24e3ac36f3a4e9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 01:42:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 602eaacebbcdecd66f997c80b5e17527 SHA-1: 8b688e67ba42f5f6f2cf9a5ba57edcc396b63bd9 SHA-256: ad24e3ac36f3a4e9ad7adfaa40504f47ae617f3cf1b1ab17d0291c6aa8336651
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for free game currency ('Robux') and hacks, directing users to a malicious redirector. The primary URL, http://netcdn.co/app/431946152/roblox-robux-hack-26-may-2021-game-hack, is flagged as malicious infrastructure. The document likely serves as a delivery mechanism for further malicious content, such as malware or phishing pages, by leveraging the embedded links.

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/roblox-robux-hack-26-may-2021-game-hack In PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-hack-links_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-cbro-hacker-gets-banned-mid-game_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-pet-simulator-cheat-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/get-free-bc-tbc-obc-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/ok-google-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/someone-hacked-into-my-roblox-account_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-guest-666-shirt-free_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/god-mode-roblox-cheat-engine-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-do-i-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/robux-hack-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-robux-generator-without-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-hack-in-roblox-got-talent_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-godmode-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-get-premium-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/dj-khaled-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-robux-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-python-hack-scripts_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCF 22524 bytes
SHA-256: b4156744afc4fb09888d4afb9c5212a1968bbcd3369d6c775a1d3352b5350676
font_01_sfnt_off00006228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6228 19740 bytes
SHA-256: c98ff1cd346ef8a40ff3807ca5d80ffa38b6bc3ec01438fcfed2c999d7089f64

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