Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1cde57188c815cd…

MALICIOUS

PDF

25.0 KB Created: 2019-04-29 23:07:48 +01:00 Authoring application: mPDF 5.7
MD5: 5c125fe725e2325aba385b4e452c2475 SHA-1: b9de5e64fb90d52b8d207c47ea0de18aad76d2e8 SHA-256: b1cde57188c815cd0bce32d0f45cc3e19285a18d00570fe3eed8fa805372bfb3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this file as malicious with high confidence. While no scripts were extracted, the sheer volume of outbound links suggests a malicious intent, possibly for SEO spam or to redirect to further malicious content. The primary attack pattern observed is the mass linking to external domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://muicuiu.dumb1.com/2a05a07a02a08a08/Reclaiming-Conversation-The-Power-of-Talk-in-a-Digital-Age-by-Sherry-Turkle.pdf
    • http://muicuiu.dumb1.com/4a00a00a02a03a02/Reclaiming-Conversation-The-Power-of-Talk-in-a-Digital-Age-by-Sherry-Turkle.pdf
    • http://muicuiu.dumb1.com/3a06a07a00a06a09/Alone-Together-Why-We-Expect-More-from-Technology-and-Less-from-Each-Other-by-Sherry-Turkle.pdf
    • http://muicuiu.dumb1.com/2a01a05a00a09a00/Carbon-Trading-A-Critical-Conversation-On-Climate-Change-Privatisation-And-Power-by-Larry-Lohmann.pdf
    • http://muicuiu.dumb1.com/1a03a08a04a02a08/As-Easy-as-Breathing-Reclaiming-Power-for-Healing-and-Transformation--Poems-Letters-and-Inner-Listening-by-Margaret-Dubay-Mikus.pdf
    • http://muicuiu.dumb1.com/8a05a00a05a09a04/Riopelle-in-Conversation-In-Conversation-series-In-Conversation-series-by-Gilbert-Erouart.pdf
    • http://muicuiu.dumb1.com/1a00a03a00a09a02/Everything-Is-Miscellaneous-The-Power-of-the-New-Digital-Disorder-by-David-Weinberger.pdf
    • http://muicuiu.dumb1.com/4a08a03a08a05a05/Talk-That-Talk-An-Anthology-of-African-American-Storytelling-by-Linda-Goss.pdf
    • http://muicuiu.dumb1.com/1a00a07a05a08a01a05/Buddhists-Talk-About-Jesus-Christians-Talk-About-the-Buddha-by-Terry-Muck.pdf
    • http://muicuiu.dumb1.com/2a06a09a03a05a08/What-We-Talk-about-When-We-Talk-about-the-Tube-The-District-Line-by-John-Lanchester.pdf
    • http://muicuiu.dumb1.com/2a03a04a03a02/What-We-Talk-About-When-We-Talk-About-Anne-Frank-by-Nathan-Englander.pdf
    • http://muicuiu.dumb1.com/1a01a05a08a08a05a03/Sherry-Serafini-s-Sensational-Bead-Embroidery-25-Inspiring-Jewelry-Projects-by-Sherry-Serafini.pdf
    • http://muicuiu.dumb1.com/3a07a08a07a02/What-I-Talk-About-When-I-Talk-About-Running-by-Haruki-Murakami.pdf
    • http://muicuiu.dumb1.com/3a00a09a02a02a02/What-We-Talk-About-When-We-Talk-About-Love-by-Raymond-Carver.pdf
    • http://muicuiu.dumb1.com/2a05a00a07a04a01/What-I-Talk-About-When-I-Talk-About-Running-by-Haruki-Murakami.pdf
    • http://muicuiu.dumb1.com/7a04a06a02a07/Reclaiming-the-Sand-Reclaiming-the-Sand-1-by-A-Meredith-Walters.pdf
    • http://muicuiu.dumb1.com/9a09a07a06a00a00/Digital-Humanities-and-Digital-Media-Conversations-on-Politics-Culture-Aesthetics-and-Literacy-by-Roberto-Simanowski.pdf
    • http://muicuiu.dumb1.com/7a06a06a00a08a08/Reconstructing-European-Copyright-Law-for-the-Digital-Single-Market-Between-Old-Paradigms-and-Digital-Challenges-by-Bernd-Justin-Juette.pdf
    • http://muicuiu.dumb1.com/1a00a01a02a03a07a00/Darknet-La-guerra-de-las-multinacionales-contra-la-generacion-digital-y-el-futuro-de-los-medios-audiovisuales-Hollywood-s-War-Against-the-Digital-Generation-by-J-D-Lasica.pdf
    • http://muicuiu.dumb1.com/1a06a01a08a06a00/What-We-Talk-About-When-We-Talk-About-War-by-Noah-Richler.pdf
    • http://muicuiu.dumb1.com/1a03a08a04a02a08/As-Easy-as-Breathing-Reclaiming-Power-for-Healing-and-Transformation--Poems-Letters-and-Inner-Li

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