Malicious PDF — malware analysis report

Static analysis result for SHA-256 4322cbe2e116748f…

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 16:52:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d20f8cbafbe396d4e5eb3bae1f679c25 SHA-1: 1b2d1078ab39baef6fb0e6522f564a26d14fd045 SHA-256: 4322cbe2e116748f005ff4522de1e83d80ace550cd7c8751962bd11eab638e7f
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/how-to-get-free-pets-in-adopt-me-roblox-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/free-robux-youtube-stream_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-faces-from-events-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-tix-and-robux-game_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-hack-players-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-and-tickets-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/get-wall-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/cheat-invincible-roblox-mad-city_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/daily-free-spins-coin-master_GM406889139.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_off000030a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A8 22216 bytes
SHA-256: 98e36a322ad9313b9f797a77e6b55c3bb41ed69201fdb25ad948c9eee66d5a80
font_01_sfnt_off00006212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6212 19620 bytes
SHA-256: bc53b7e0a3d994d1aea6b32a21162b349148a09686b1a296b70cb8e1a20cc1e0

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