Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa86ffd539fd3e44…

MALICIOUS

PDF

34.7 KB Created: 2021-06-26 08:31:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a07ebc2fb048f71c917ae623a1b8e37a SHA-1: 59903a72d6a3f9cf241dffa19fdc79914fceddf5 SHA-256: aa86ffd539fd3e44e4a2fe917b268a3cdc1a8980ed5a9e0648b0aee315009ef8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game-related cheats and generators, including a prominent link to 'how-to-hack-games-on-roblox-2021'. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the document's deceptive content suggest an attempt to trick users into downloading further malicious content, likely through a social engineering pretext.

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/how-to-hack-games-on-roblox-2021-game-hack In PDF document text
    • http://www.studiodamato.it/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://www.studiodamato.it/images/robloxlover69-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/shiros-hair-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/roblox-script-speed-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-generator_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://www.studiodamato.it/images/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/snippet-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-roblox-sigh-in_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/can-you-give-me-free-robux_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_off00002ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE1 22612 bytes
SHA-256: 2931e9e33bd9fd0986cf650634d4b616d52063e636eda2e35d38ec949756e73c
font_01_sfnt_off000060f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F3 19480 bytes
SHA-256: 4b4b7121aa7c6b5a14c1a5c6efad311829e8a947ca41eadda606b604fd94912a

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