Malicious PDF — malware analysis report

Static analysis result for SHA-256 280ade85f0e71bcd…

MALICIOUS

PDF

34.8 KB Created: 2021-06-27 03:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4758219fd8d988a83f8c7a84f60fb4a4 SHA-1: 147ebc6875f5b0e02b7a62e9fbf10ac2f891284f SHA-256: 280ade85f0e71bcd2d7192bd8120eb75a15bf4766ebfd7c963fea354c303d17f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document uses a lure of 'free Robux' and game hacks to entice users to click on external links. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-on-windows-10-2021-game-hack, likely leads to a malicious site or further download. The document's structure and embedded URLs strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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/how-to-get-free-robux-on-windows-10-2021-game-hack PDF link annotation
    • https://ibelive.tw/image/data/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/download-rc7-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/wurst-client-download_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-team-change-gui-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-no-veracation_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/vip-roblox-free_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_off00002f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F98 21956 bytes
SHA-256: 11b37ac9c90281a35264bacf2d459331f0846d0239e33434336826ceada008bf
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 19880 bytes
SHA-256: 140e4ee8a07fdc39c23c38f9a11cdbd84d97591411c0e0681ee7bb9e70d98172

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