Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b3d59def80ee097…

MALICIOUS

PDF

36.7 KB Created: 2021-06-28 01:46:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ef0e448d501a3d0000390eff45276498 SHA-1: d2419ae1fcb2d2ee380b12abdd22163c21b8c8e7 SHA-256: 3b3d59def80ee09760aedee1ce3c763954c417e1a7867fa53da95232c95a7794
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files promising game-related cheats or free items. The ML classifier strongly indicated maliciousness, and the presence of a direct download URL further supports a malicious intent. This suggests the document is part of a phishing or scam campaign designed to trick users into downloading potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-games-that-give-you-free-clothes-game-hack PDF link annotation
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-robux-instant-inspect-element_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-the-conquerors-3-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-tickets-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-roblox-2021-unlimited-codes-for-kids_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/admin-vs-hacker-roblox-1_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/hack-774-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-verification_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/roblox-bloxburg-tips-and-cheats_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/dominos-hat-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/how-to-get-a-free-pet-on-roblox-adopt-me_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_off000035b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B3 22768 bytes
SHA-256: 66707c83e6078e2d69bc08740e683e46b86e9cdf62fcc67cba039dc6a1d21592
font_01_sfnt_off000068ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AB 19716 bytes
SHA-256: a049f91da2a5f673ee8bdddb66e04ab16341ee881dfe876bfe6c1856da68d744

Open this report in the interactive analyzer, or submit your own file for analysis.