Malicious PDF — malware analysis report

Static analysis result for SHA-256 c264d76570b53ab6…

MALICIOUS

PDF

35.3 KB Created: 2021-06-20 09:45:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 770a7c4fcf2073d85ebf1ea5060ef618 SHA-1: 807bb2c428222dc920fed945891e37e623f302d6 SHA-256: c264d76570b53ab65c325f392c7dae6783d7062b9541ca8a62f785f0734598b0
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/coin-master-free-spins-link-blogspot-april-2021-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/tiktok-free-folowers-joker_GM835599320.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-robux-in-roblox-on-phone_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/robux-offers-free_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/tiktok-free-booster_GM835599320.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/withdraw-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/tiktok-free-wallpapers_GM835599320.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B9 23244 bytes
SHA-256: d62822b825ed9d2cfc40c83118f893032fae97ab4903ccb1eb95358d3a41e6a5
font_01_sfnt_off000064f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F7 19036 bytes
SHA-256: ef972ac8b6f0d301ec64deecd99ee3108bd9315cf8785a49d8f43646f678be13

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