Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35565f1b2d07b7c…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 20:38:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f6bf56d45b4175ab89784aa9c4b5b0ae SHA-1: 3cf5069200dcf2adc15640f85a373b4800a6ec58 SHA-256: e35565f1b2d07b7c0a027def8ef4e09e857e97dd06d6b066306c1aa5c4f35465
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 0.9824

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.tw/app/431946152/free-robux-no-verification-2021-game-hack PDF link annotation
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-not-clickbait-2021_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-simulator-100k-free_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/2021-robux-hack-inspect-element_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/hack-para-tener-750000-de-robux-gratis-5_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-roblox-intros_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/new-roblox-infinite-jump-exploit-hack-working-2021_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-working-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/gaming-cheats-com-robux_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-robux-hack-2021-december_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-robux-pastebin-hack-2021_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/money-robux-free_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-robux-generator-2021_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_off00002c24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C24 22096 bytes
SHA-256: 5fdabd7ddf59b0812fdfb8fbb52252a0acf305155511d09e8bde26486f480784
font_01_sfnt_off00005d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D21 19476 bytes
SHA-256: 0ea569e2458714af2fc88272f668bb9559ca065cecd410792851a624a05e4648

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