Malicious PDF — malware analysis report

Static analysis result for SHA-256 e51ea10a4e0b5ca8…

MALICIOUS

PDF

34.0 KB Created: 2021-07-02 02:20:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fe3a183646212feb1cd2553b107d0b3f SHA-1: f9eb5215f1e483180b19980ddc76504de956e691 SHA-256: e51ea10a4e0b5ca8425c6e6b3e888e76b8bb7538213e3cb887a9741b51ea9ccd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a URL that likely hosts malicious content or phishing pages. The document body and extracted URLs reinforce this, indicating a social engineering attempt to trick users into downloading or visiting a compromised site. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-hack-script-tampermonkey-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-hack-script-tampermonkey-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id//repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-game-passes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-real-roblox-robux-genereator_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/codes-to-enter-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-hacks-tower-of-hell_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-hack-roblox-places_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/esp-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-free-robux-no-phone-number_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-cheats-unkwown-cheats_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-password-hack-tool_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-website_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_off00002e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5D 21876 bytes
SHA-256: 54859d22f77543040d5f66f987657906d93c6d12c0ed316180d2a1bdf57836fc
font_01_sfnt_off00005e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E73 19496 bytes
SHA-256: 1a2b17999dfc54796c57fdd3d74fcc59236a467f485b84196884a4d950b265a2

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