Malicious PDF — malware analysis report

Static analysis result for SHA-256 12122160401eda73…

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 12:05:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8aafe67e25aa5d938205abe3cf55f9bb SHA-1: 18d79b734cfdeb0a92552bfd42602cc1a63c2fc6 SHA-256: 12122160401eda7360dd0632464024b5fb04af16b1d2526f4bf78191d273390d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free Robux' and game hacks. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting potentially harmful sites. The presence of embedded URLs and the critical heuristic firings strongly indicate a phishing or scam attempt designed to lead users to malicious content.

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/free-robux-scam-uncopylocked-game-hack In PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-earn-free-robux-with-proof-buying-item_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-cheat-engine-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-mcdonalds-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-ninja-legends-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-admin-commands-on-roblox-for-kids_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-hack-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-an-item-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-com-hack-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/colossus-legends-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hack-para-volar-en-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/hack-for-trasure-hunt-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/april-fools-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/roblox-btools-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.industri.ft.unand.ac.id/repository/how-to-get-speed-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00002f6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6B 22752 bytes
SHA-256: 26452c83bedbf6b5455989333bf861b3075c38368d27169f9a70797d4258d8db
font_01_sfnt_off00006285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6285 19752 bytes
SHA-256: dbfaee70eb42c6db2c41163b0ad2ff7666a30445dfc93def4c561fbb429b5bfc

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