Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbee6481026d199a…

MALICIOUS

PDF

15.6 KB Created: 2019-04-29 23:44:38 +01:00 Authoring application: mPDF 5.7
MD5: 104e35603308561bcf28323ba07b5da0 SHA-1: 8c2fab4d476d371480f797528c0152dbe5ceb111 SHA-256: dbee6481026d199ac116d7f3004d2eec9af71f39248a9982a968facd0d8e29c2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently classified as benign, the sheer volume and the heuristic firing of PDF_SEO_LINK_FARM suggest a malicious intent to manipulate search engine results or to serve as a distribution point for further malicious content. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/5092098094096092/Danny-Dunn-and-the-Smallifying-Machine-Danny-Dunn-11-by-Jay-Williams.pdf
    • http://loaminoo.linkpc.net/1094097095096097/Danny-Dunn-and-the-Homework-Machine-Danny-Dunn-3-by-Jay-Williams.pdf
    • http://loaminoo.linkpc.net/5092098095090099/Danny-Dunn-Scientific-Detective-Danny-Dunn-14-by-Jay-Williams.pdf
    • http://loaminoo.linkpc.net/5092098095090096/Danny-Dunn-and-the-Heat-Ray-Danny-Dunn-7-by-Jay-Williams.pdf
    • http://loaminoo.linkpc.net/2092097091096094/Danny-and-the-Trip-to-Outer-Space-Danny-and-the-Portal-of-the-World-2-by-David-T-Lee.pdf
    • http://loaminoo.linkpc.net/9091091099097095/Danny-Duck-Tames-the-Lion-Danny-Pato-doma-al-Le-n---Bilingual-Book-in-English-and-Spanish-Study-Spanish-for-Kids-1-by-Colin-Hann.pdf
    • http://loaminoo.linkpc.net/6095096093098090/Danny-Proulx-s-50-Shop-Made-Jigs-amp-Fixtures-Jigs-amp-Fixtures-For-Every-Tool-in-Your-Shop-by-Danny-Proulx.pdf
    • http://loaminoo.linkpc.net/1093097097099/Danny-Ain-t-by-Joe-Cottonwood.pdf
    • http://loaminoo.linkpc.net/2098094093093092/Yes-Man-by-Danny-Wallace.pdf
    • http://loaminoo.linkpc.net/2099098096095095/What-Might-Have-Been-by-Matt-Dunn.pdf
    • http://loaminoo.linkpc.net/3093092096090098/Join-Me-by-Danny-Wallace.pdf
    • http://loaminoo.linkpc.net/5095092098095096/Milo-s-Run-by-Danny-King.pdf
    • http://loaminoo.linkpc.net/3097094095094/No-One-Here-Gets-Out-Alive-by-Danny-Sugerman.pdf
    • http://loaminoo.linkpc.net/2092093093094093/Danny-s-Egg-by-Colin-Thiele.pdf
    • http://loaminoo.linkpc.net/5092098094090092/Danny-s-Mom-by-Elaine-Wolf.pdf
    • http://loaminoo.linkpc.net/4095092091095095/Train-by-Danny-M-Cohen.pdf
    • http://loaminoo.linkpc.net/3094099095094094/Friends-Like-These-by-Danny-Wallace.pdf
    • http://loaminoo.linkpc.net/1092091093092095/Train-by-Danny-M-Cohen.pdf
    • http://loaminoo.linkpc.net/4097096090091099/Going-to-Sea-in-a-Sieve-by-Danny-Baker.pdf
    • http://loaminoo.linkpc.net/7094097091099/Parachute-by-Danny-Parker.pdf
    • http://loaminoo.linkpc.net/1093097097099/Danny-Ain-t-by-Joe-Cotton

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