Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e66fd9f3afd0260…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 12:35:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 19727faf74e6d6dc4cba79e5c2c1a252 SHA-1: c122ffd59e01e203fcf51c5931e33915bec750d1 SHA-256: 9e66fd9f3afd02601c82b68d4eb0f815cb3f2618aff15a6b2a4f1cfccb4ae2c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free currency for popular games like Roblox and Coin Master. It contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector at http://netcdn.co/app/431946152/cheat-engine-bypass-for-roblox-game-hack. The presence of these malicious links and the overall deceptive content strongly suggest a phishing or scamming attempt, likely leading to further malware download or credential harvesting.

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/cheat-engine-bypass-for-roblox-game-hack In PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-free-robux-on-roblox-2021-no-hacks_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/change-name-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-mod-apk-de-roblox-2_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/commands-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-bear-mask-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/roblox-speed-hack_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
stream_002_off00003153.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3153 22644 bytes
SHA-256: bbb47b039a739d2ad6f588d43f5b9248cb32332383403c09f9136fd15d512fba
font_01_sfnt_off000063da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DA 19396 bytes
SHA-256: 26c721c03995126e66ff788fa5232919bf49714e19d419db3626906e24ad7586

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