Malicious PDF — malware analysis report

Static analysis result for SHA-256 7406f90b844719af…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 23:48:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 46f2398fb253f108c1fc1110dc881e9a SHA-1: eaba9ed97f66f9ae61a47544c5da384b7832a245 SHA-256: 7406f90b844719af5824619058d09298510978e2533b2ffc2a11034db88fc4bf
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 0.9980

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 http://netcdn.tw/app/431946152/free-robux-without-downloading-apps-game-hack PDF link annotation
    • http://ebook.itn.ac.id/repository/fnaf-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-tiktok-editor_GM835599320.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-roblox-robux-generator-code_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-hack-into-dantdms-roblox-characters_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-games-with-free-music_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-do-you-hack-roblox_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_off00002fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCC 22272 bytes
SHA-256: da2a10726aa2b04bf214cbcbca1a69974986a2e3e558808c3d5b1696a28cca45
font_01_sfnt_off00006161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6161 20060 bytes
SHA-256: 8436a460c804c08fe10423d7ff888b310581b803afefa6e8463990a0aaecc0a2

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