Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda34bd23da8533f…

MALICIOUS

PDF

41.5 KB Created: 2021-05-12 08:08:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5637fdd3c68bdbb81941457441e59289 SHA-1: 25c8e31a026900373a1c5b043effc9104d05bb69 SHA-256: fda34bd23da8533f933cbe2873aecf8e195b886208c6d5491332d7d0f8f50cff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9971

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.xyz/app/406889139/como-hackear-coin-master-gratis-game-hack PDF link annotation
    • http://leigraphics.com/images/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://leigraphics.com/images/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/arsenal-hacks-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
stream_003_off000047c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C9 25476 bytes
SHA-256: 35e58bbe31eee3339365c118973d1ed958234f88fad6176c8943f78874d44e5a
font_01_sfnt_off000080af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AF 17976 bytes
SHA-256: a3e9012f8e1f9d61ddd4f1d4d38951fb16594134e53f2a4a4cbd6e03026951a8

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