Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe2bb3d046a3274d…

MALICIOUS

PDF

33.2 KB Created: 2020-06-03 07:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c31b417246d911ed9e98c57e0d5c723e SHA-1: d0b7e950ff45bf3e2dab82fadbb80964b2092b9a SHA-256: fe2bb3d046a3274d468dd3ca7762e09c934098116ddcdcc7c54750a7d5dc5621
92 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and exhibits characteristics of a link farm. It contains numerous external links to other PDF files hosted on various domains, suggesting a redirection or content delivery scheme. The document body, though heavily obfuscated, contains some of the URLs, reinforcing the link farm attack pattern. The primary intent appears to be directing users to a network of potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://hopefindsus.com/uploads/1/3/0/6/130639896/130639896.html#alternative+to+cartoon+hd
    • http://musiquesaucoeur.com/uploads/1/3/1/4/131437677/9172766.pdf
    • http://paulhannahestateagents.com/uploads/1/3/1/1/131163931/63fe8e08b4ca7.pdf
    • http://bombaehorseboxbar.com/uploads/1/3/0/2/130289184/16e29a27870e16c.pdf
    • http://lorenzfamilyfoundation.com/uploads/1/3/1/6/131637357/nijireributaviv.pdf
    • http://hostmaster.leonasleads.dog/uploads/1/3/1/6/131606011/03f451515.pdf
    • http://hopefindsus.com/uploads/1/3/0/6/130639896/terms.html
    • http://hopefindsus.com/uploads/1/3/0/6/130639896/dmca.html
    • http://hopefindsus.com/uploads/1/3/0/6/130639896/policy.html
    • https://tesodufow.files.wordpress.com/2020/05/wuwegapekaxiveve.pdf
    • https://kipevofi.files.wordpress.com/2020/05/tobafukonitefixasavope.pdf
    • https://dujudugu.files.wordpress.com/2020/05/pugutisovanesumibepenijid.pdf
    • https://xujesup.files.wordpress.com/2020/05/36093964565.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005943.bin
f619c31e166f896e4222a215254b736a04191826bd09b920fdaae2cec94a3928		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5943 9420 bytes

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