Malicious PDF — malware analysis report

Static analysis result for SHA-256 aad9088098e7ff32…

MALICIOUS

PDF

38.5 KB Created: 2021-06-27 03:11:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aee5a816312a73a20ee8af8af060c29d SHA-1: f500a4f7b7d951ca4a5245720081aa1f51069649 SHA-256: aad9088098e7ff326acfd0ea2fed55225a93109ebd90fd0ab5547b0cf29260bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visual download button lure, suggesting an attempt to trick users into downloading malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs related to game hacks indicates a phishing or scamming attempt. No scripts were extracted, but the overall pattern suggests a downloader or redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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-epic-minigames-hack-2021-game-hack In PDF document text
    • http://empresa-venta.hr/files/mining-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/cheat-engine-roblox-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/kron-hack-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/hacker-software-roblox_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-roblox-clothes-temp-downlode_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-do-i-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/give-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/youtube-how-to-make-something-on-roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/descargar-roblox-hackeado-para-pc_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_off00003b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B17 23196 bytes
SHA-256: f93d2d6965023810b588a1b22ac1daf1d74989e1e60c33f791e9be42e14e6cbc
font_01_sfnt_off00006f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6D 19808 bytes
SHA-256: d26b84979f51d347b7e4f9af64453265fb7ab1a34d1a7312516c706baaae9c57

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