Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c69cb3375b9a8f7…

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 02:00:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c958bff34be45ae265f4c16b09d99554 SHA-1: 95da0d9819d53c2558fd30783ace7a83b08b782f SHA-256: 7c69cb3375b9a8f7bf25d8fcb1dc03eac747fc890f3f63db894973bc4bfe8168
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that redirect to sites promising game hacks and free currency, such as 'roblox-btools-hack-script-game-hack'. These lures are designed to trick users into clicking the links, leading them to potentially malicious websites. The ML classifier also strongly flagged this PDF as malicious.

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-btools-hack-script-game-hack PDF link annotation
    • http://repository.unla.ac.id/repository/hacks-for-legends-of-speed-roblox-download-pc_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hack-youtube-roblox-game_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-roblox-hack-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hacking-community-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/pin-robux-free_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/comment-avoir-robux-gratuit-2021-sur-pc-facilement-free_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-apocalypse-rising-spawn-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/minecraft-wurst-hacked-client_GM479516143.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_off00003215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3215 22388 bytes
SHA-256: b98959d64283e359d782881e4de74b6297e17e77d05e7e20ff7cc6fca959697c
font_01_sfnt_off00006430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 19056 bytes
SHA-256: a3063f28ba3d3bf67ae5da408be6c8bd66aae14f967a02362b5f221d1967d853

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