Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeae3732b253778a…

MALICIOUS

PDF

34.8 KB Created: 2021-06-30 04:34:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 05567989b3facb7d9370c81ee92e1725 SHA-1: d883f588a7c1a5d41cf2998a3f82fce8a4b6d9fb SHA-256: eeae3732b253778a0cb7dad2c0736ac75c48de48dcd14920fa676592e33d19de
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/431946152/how-to-get-free-robux-on-windows-10-2021-game-hack PDF link annotation
    • http://library.fk.upnvj.ac.id/repository/free-roblox-scratch_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/get-unlimted-robux-for-free-new-hack-2021-roblox-working_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-100-dollar-gift-card-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-peoples-account-on-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-spot-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/strucid-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-make-own-roblox-shirt-free_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-into-any-roblox-account-no-waiting_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-a-hack-client-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-bloob_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/youtube-hack-de-juegos-apk-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-without-human-verification-on-computer_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-v2-11-download_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-winrar_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-free-robux-hack_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_off00002de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE4 22512 bytes
SHA-256: 126813c3352a351ae5726109d76015087d7ec23e62f7642ebd12adfeea5d2d90
font_01_sfnt_off0000601a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601A 19880 bytes
SHA-256: 140e4ee8a07fdc39c23c38f9a11cdbd84d97591411c0e0681ee7bb9e70d98172

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