Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4e658f776e8ef4…

MALICIOUS

PDF

34.4 KB Created: 2021-07-07 21:28:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 61be4ac3709d4936331100cfcc0dc650 SHA-1: 6cf7ba35aeff34ad531c9839a7f8a82fe794cc22 SHA-256: ed4e658f776e8ef4e8df9641270a686a61a3021634678d8674c8a49854778ebc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on potentially malicious content, specifically related to game hacks and free currency. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful sites.

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.tw/app/431946152/free-robux-without-downloading-apps-game-hack In PDF document text
    • http://regiefranchet.fr/userfiles/files/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/roblox-cheat-engine-mac-download_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/2021-headphones-roblox-free_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/roblox-auto-piano-hack_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/how-to-hack-games-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://regiefranchet.fr/userfiles/files/coin-master-website_GM406889139.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_off00002fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB1 21384 bytes
SHA-256: ee659564dbac38cb2d70879cab7dd28b8e9901927ed1b92d43927e361cf4689b
font_01_sfnt_off00005e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E66 20060 bytes
SHA-256: 8436a460c804c08fe10423d7ff888b310581b803afefa6e8463990a0aaecc0a2

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