Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bb37c7f732ed05e…

MALICIOUS

PDF

50.7 KB Created: 2021-06-03 05:18:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 1859c508a90c405473ad843c68c1086c SHA-1: 4f218dacbf2f93647b412a37f6aeb8e4c29a2a9c SHA-256: 2bb37c7f732ed05ee621f4926dbe94acf335a41ae45e87a2f4b12d470b3bf99d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into visiting a malicious URL. The document contains multiple embedded URLs, with the primary one redirecting to a site offering 'Roblox Speed Hack'. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a malicious payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9681

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/431946152/roblox-speed-hack-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/rbx-website_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E89 26648 bytes
SHA-256: 78a7c774dc6d353fa8f389e62b4798cae269b7c4ca2727fbe3a983bbbe49c8fd
font_01_sfnt_off00008c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C00 2844 bytes
SHA-256: d4efd49219a7ff6424c923a6ccef5b7e1750ded18bbd79546f2ad196ddc76c43
font_02_sfnt_off000095ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95BA 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off0000a261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA261 18532 bytes
SHA-256: ecd25e1cae784267f5a646f1b70b1ce742945d3ce40e95dc5b3aacf46c412aa4

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