Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba062cacadf1876…

MALICIOUS

PDF

16.2 KB Created: 2019-05-07 06:14:52 +01:00 Authoring application: mPDF 5.7
MD5: 7f3b9dbaafbdca0891d3a217587589dd SHA-1: d8f5bed97513cef8047ebeae396a50e53b3302e0 SHA-256: 0ba062cacadf18764ad13d53a143a3d7f9e25068b3b8734f2059b8407910efc6
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

Heuristics 3

  • 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
  • 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://muicuiu.dumb1.com/4a08a03a08a07a07/The-Water-s-Footfall-and-The-Green-Volume-by-Sohrab-Sepehri.pdf
    • http://muicuiu.dumb1.com/3a07a02a01a08a00/The-Expanse-Of-Green-Poems-Of-Sohrab-Sepehry-by-Sohrab-Sepehri.pdf
    • http://muicuiu.dumb1.com/6a06a06a09a08a04/The-Oasis-of-Now-Selected-Poems-by-Sohrab-Sepehri.pdf
    • http://muicuiu.dumb1.com/2a03a05a09a01a09/Green-Water-Green-Sky-by-Mavis-Gallant.pdf
    • http://muicuiu.dumb1.com/4a07a09a01a05a00/Footfall-by-Larry-Niven.pdf
    • http://muicuiu.dumb1.com/3a02a05a09a00a04/Blue-Milk-and-Green-Water-by-Annette-Zoheret.pdf
    • http://muicuiu.dumb1.com/1a03a07a02a08a09/Green-Grass-Running-Water-by-Thomas-King.pdf
    • http://muicuiu.dumb1.com/4a04a04a09a03/Green-Grass-Running-Water-by-Thomas-King.pdf
    • http://muicuiu.dumb1.com/8a05a01a08a07a05/The-Ultimate-Green-Tea-Guide-History-Green-Tea-Benefits-Green-Tea-Types-Best-Brewing-Practices-and-Tasty-Green-Tea-Recipes-for-Everyone-by-Ayumi-Furuya.pdf
    • http://muicuiu.dumb1.com/2a08a00a06a03a05/Water-Margin-Volume-1-by-Shi-Nai-39-an.pdf
    • http://muicuiu.dumb1.com/1a01a06a08a00a08/Bride-of-the-Water-God-Volume-1-by-Mi-Kyung-Yun.pdf
    • http://muicuiu.dumb1.com/1a03a04a04a05a09/Bride-of-the-Water-God-Volume-3-by-Mi-Kyung-Yun.pdf
    • http://muicuiu.dumb1.com/1a03a04a06a07a06/Bride-of-the-Water-God-Volume-6-by-Mi-Kyung-Yun.pdf
    • http://muicuiu.dumb1.com/1a03a04a08a03a07/-Bride-of-the-Water-God-Volume-9-by-Mi-Kyung-Yun.pdf
    • http://muicuiu.dumb1.com/7a08a07a02a00a03/Self-Study-Notes-for-the-Kit-b-I--q-n-The-Book-of-Certitude-by-Sohrab-Kourosh.pdf
    • http://muicuiu.dumb1.com/9a00a03a09a07/Valiant-Masters-Ninjak-Volume-1-Black-Water-by-Mark-Moretti.pdf
    • http://muicuiu.dumb1.com/4a04a02a03a01a02/Green-Wake-Volume-1-TP-by-Kurtis-J-Wiebe.pdf
    • http://muicuiu.dumb1.com/6a08a08a09a06a01/Green-Lantern-Volume-7-Rage-of-the-Red-Lanterns-by-Geoff-Johns.pdf
    • http://muicuiu.dumb1.com/4a06a04a06a09a09/Green-Arrow-Volume-2-Island-of-Scars-by-Benjamin-Percy.pdf
    • http://muicuiu.dumb1.com/7a02a09a05a02a06/Green-Lantern-Corps-Volume-2-Alpha-War-by-Peter-J-Tomasi.pdf

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