Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce98ab4342a65ea0…

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 14:18:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c57cd9190bb501b8bdee69c184e30ab9 SHA-1: ca490f8aea57ee22f1c01d66d44667a5ebd027b3 SHA-256: ce98ab4342a65ea0ac52d8dbe18d83b3b3fb405452f9bbebd3ceb7d9e6e97e19
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 0.9865

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 https://netcdn.online/app/406889139/coin-master-level-4-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-cards-free_GM406889139.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
stream_004_off00004e69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E69 25320 bytes
SHA-256: a31f023fac48f10ea1652e819e8e5f47072e87553a52301afaba7326c875a6ea
font_01_sfnt_off0000883e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883E 17796 bytes
SHA-256: a38909063335524848e6a39e33c0ae3f0b16aca26b06ee664efc1e2cd51527ce

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