Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e52223fe7e75237…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 13:43:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 80fe74e054ecec425558e590b9fa3789 SHA-1: f05d5bdd0e928a142d6f2acdbf00096c92a08c98 SHA-256: 3e52223fe7e7523771d38a3f0603a8e81cac79c0a7d120229b003c4dad0d1c42
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/roblox-free-robux-generator-no-human-verification-2021-game-hack PDF link annotation
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-scam_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-money-cheats-2021_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-spin-hack-coin-master-2021_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
font_00_sfnt_off00003178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3178 22184 bytes
SHA-256: 2fe2c12dfa1b4e74fcb820b72020ecf952c4726c0bf5a28aa11156e77e890b41
font_01_sfnt_off00006204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6204 19812 bytes
SHA-256: 18d44a1d63e03bf909d2b27c254dee3aa8c0ac398f245bca4b0c84f662625180