Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dcef73ade3e45fa…

MALICIOUS

PDF

33.8 KB Created: 2021-06-18 15:26:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 37b294c66d1b4430c0e31fcd2da32112 SHA-1: cc89016e3e8caac56d44883854b664fc01314b2d SHA-256: 5dcef73ade3e45fa5c193dfa521b2d2d9923797b9fef4a6156c36ac8062f75e9
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.co/app/431946152/roblox-template-hacker-game-hack PDF link annotation
    • http://caraless.com/images/open-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/robux-converter_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/prison-life-roblox-hack-download-20212021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-and-fall-roblox-codes_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-free-robux-copy-and-paste_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/como-conseguir-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/roblox-hack-week-2021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-robux-link_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_off00002f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F20 21732 bytes
SHA-256: 3753e5467e3bad816f77794f26466a285e4d2349561fa34c852562c4a9e7cafd
font_01_sfnt_off00005ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF3 19012 bytes
SHA-256: 314266e101526749d00368280da22917ca02b821fae4b0ee4c91887360a14664

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