Malicious PDF — malware analysis report

Static analysis result for SHA-256 fde7aa7188c88c19…

MALICIOUS

PDF

48.1 KB Created: 2021-06-07 18:22:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 97bd865c08a9b7ef80c0d02364ff2c8c SHA-1: c65f3a7b4bd0e82a697777c4f462ca83f080dab7 SHA-256: fde7aa7188c88c19e627137de8326caa12c1eb69fa546ffe95330598eb675f3e
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 0.9796

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-twisted-murderer-free-radio-game-hack PDF link annotation
    • http://akvamaster.com.ua/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://akvamaster.com.ua/images/are-roblox-hacks-real_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-tiktok-fans-app_GM835599320.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000525a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525A 25720 bytes
SHA-256: 4bfb4b375ed1581c3c68079eeddc5076af38ef86ea32d0442ca41b9cb82a5fe3
font_01_sfnt_off00008d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D17 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000096c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96C8 19076 bytes
SHA-256: 96e765ce5a5e8de2210b11f3460a63c4f4e0a50c3d895601f3b488283e14082b

Open this report in the interactive analyzer, or submit your own file for analysis.