Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd5005b6022f14c…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 07:08:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ebc624f2c28f340d6ac150e7ab5ad767 SHA-1: f13c76c80940e6c4921e59995c78d0d88de4b369 SHA-256: 9bd5005b6022f14ca349f6bc93230283548b04a7fc60085fa124cde529f02638
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/406889139/hackear-coin-master-sin-root-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/how-to-hack-thru-premium-houses-in-roblox-pacifico_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/pagina-de-hack-de-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-items-from-games-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robux-website_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-human-verification-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/i-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-website-without-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/getrobux-info_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-today_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_off00003346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3346 22488 bytes
SHA-256: b26d93cab083ba2f1f8d62b3aece3bc5c870b06bd228110f2acbf43bccdab70b
font_01_sfnt_off0000654a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654A 18004 bytes
SHA-256: 08624150e58758f406cd174736f937a82fb2a2167488774787474989852631aa

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