Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d24bfae355dc24…

MALICIOUS

PDF

33.8 KB Created: 2021-06-25 13:47:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d73caa6d3012145af814f1eff8836981 SHA-1: 0a052c684d386dc7b1dca366aa1d17784234125f SHA-256: 96d24bfae355dc244cfcfbefa068f860324b9b245c8e08503beb845f567c8f8e
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/commands-for-roblox-free-rubux-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-teleport-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-a-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-roblox-printables_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_off00002e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E54 21788 bytes
SHA-256: ddb1f698d302075dbeb67a0fa41a9af8151600dc29670405e493eb5722116d75
font_01_sfnt_off00005e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6E 19224 bytes
SHA-256: 1450c73ff2841b29e880c9312e7ecd202d94fc5fb63b7091b074e72c897c6baa

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