Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e71f8517b1f6fd…

MALICIOUS

PDF

20.0 KB Created: 2019-05-01 18:10:20 +01:00 Authoring application: mPDF 5.7
MD5: bc99153e2a7684cb5071b822dace4e42 SHA-1: 43e9b43fbdc8defaa16603aba8ba20a779de076c SHA-256: 06e71f8517b1f6fd3c5589d0eb9b4c8a0aef856d3db9fc50ab6a02412ec9d6e0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on a dynamic DNS domain. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. While no scripts were explicitly extracted, the PDF structure and the heuristic firings suggest an attempt to manipulate search engine results or redirect users to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 2

  • 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.
  • 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://loaminoo.linkpc.net/4092096099090090/That-Oxford-Girl-A-Real-Student-s-Guide-to-Oxford-University-by-Tilly-Rose.pdf
    • http://loaminoo.linkpc.net/4092095096094098/Oxford-Whispers-The-Oxford-Saga-1-by-Marion-Croslydon.pdf
    • http://loaminoo.linkpc.net/2094092093090097/My-Oxford-My-Cambridge-Memories-of-University-Life-by-Twenty-Four-Distinguished-Graduates-by-Ann-Thwaite.pdf
    • http://loaminoo.linkpc.net/5092098093094093/Oxford-University-Papers-on-India-Volume-2-Part-1-Indian-Ritual-and-Its-Exegesis-by-Richard-F-Gombrich.pdf
    • http://loaminoo.linkpc.net/1091099094095096092/Ludvig-Holberg-The-Founder-of-Norwegian-Literature-and-an-Oxford-Student-by-Simon-Christian-Hammer.pdf
    • http://loaminoo.linkpc.net/2098099097095092/The-New-Oxford-Book-of-American-Verse-Oxford-Books-of-Verse-by-Richard-Ellmann.pdf
    • http://loaminoo.linkpc.net/7093090090090096/Dictionary-of-Physics-Derived-from-the-Concise-Science-Dictionary-by-Oxford-University-Press.pdf
    • http://loaminoo.linkpc.net/1094090097096094/Shakespeare-An-Oxford-Guide-by-Stanley-Wells.pdf
    • http://loaminoo.linkpc.net/6096092095090094/The-Dodo-Guide-To-Oxford-by-Philip-Atkins.pdf
    • http://loaminoo.linkpc.net/4099090094099094/Oxford-Outside-The-Guide-Books-by-Falconer-Madan.pdf
    • http://loaminoo.linkpc.net/1091091098093093090/Real-Food-University-Cookbook-Volume-2---Sides-amp-Salads-Real-Food-University-Cookbooks-by-Scott-Kustes.pdf
    • http://loaminoo.linkpc.net/1091091098091095093/Real-Food-University-Cookbook-Volume-4---Poultry-Real-Food-University-Cookbooks-by-Scott-Kustes.pdf
    • http://loaminoo.linkpc.net/1091091098091095097/Real-Food-University-Cookbook-Volume-5---Seafood-Real-Food-University-Cookbooks-by-Scott-Kustes.pdf
    • http://loaminoo.linkpc.net/3094091094090095/Someone-Like-You-Oxford-3-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/4093091092093094/The-Oxford-Deception-by-Craig-Janacek.pdf
    • http://loaminoo.linkpc.net/2097092093097094/Everything-is-Perfect-When-You-re-a-Liar-by-Kelly-Oxford.pdf
    • http://loaminoo.linkpc.net/3090091095099097/Surprised-by-Oxford-by-Carolyn-Weber.pdf
    • http://loaminoo.linkpc.net/2096097092093090/My-Oxford-Year-by-Julia-Whelan.pdf
    • http://loaminoo.linkpc.net/4096098097095095/The-Contract-The-Masters-of-Oxford-1-by-Natalie-Dae.pdf
    • http://loaminoo.linkpc.net/9091098095098091/The-Oxford-Book-of-the-Supernatural-by-D-J-Enright.pdf

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