Malicious PDF — malware analysis report

Static analysis result for SHA-256 35253af78268c08b…

MALICIOUS

PDF

43.9 KB Created: 2021-06-09 01:23:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cbd1d9cdc02311f7f6f68bdf60b38ea8 SHA-1: 2dd8b15cbfd15599a5f436bee46511e1987e0ad0 SHA-256: 35253af78268c08b89b3e7c6a9b03c39e171b6c7f020779d2f86d318020a7543
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/roblox-free-remdem-codes-game-hack PDF link annotation
    • http://www.access-coiffure-tours.fr/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/www-robux-us_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-cheats-for-free-spins_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_off00004f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0C 24960 bytes
SHA-256: e07e873c60e4544e5a2e80385764d431d882ed28891930f0ec79a9d5393a2374
font_01_sfnt_off000088cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CD 18380 bytes
SHA-256: de9d31c6df2a4f6f194faf85feb93689a93152d40c7ee0410a0b4037d39796e1

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