Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00bf358faee85bb…

MALICIOUS

PDF

32.5 KB Created: 2020-04-14 06:21:59 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7427b3e3c77f20d53f60563b08277b60 SHA-1: e2c5a848d379dca8e227f3961c46d43cc5370748 SHA-256: c00bf358faee85bbf063b99476dd465d3f2d95b7811a590c536903d47ff2e7b7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, a technique commonly used for SEO manipulation or to distribute further malicious content. The document body, though heavily obfuscated, contains references to URLs that are also present in the heuristics, indicating a deliberate attempt to link to external resources. No scripts were extracted from this sample.

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://smecheriepesistem.net/uploads/1/3/1/3/131379439/131379439.html#chaar+churiyan+video+song
    • http://apexppt.com/uploads/1/3/0/5/130551794/7897549.pdf
    • http://mrgroucho.com/uploads/1/3/0/5/130588584/5170835.pdf
    • http://enwranch.com/uploads/1/3/1/4/131452836/9043845.pdf
    • http://glacieraero.org/uploads/1/3/1/4/131406432/niretux.pdf
    • http://mysterycannabisclones.com/uploads/1/3/1/6/131607062/318515.pdf
    • http://allmathandscience.com/uploads/1/3/0/3/130379485/bilegewor-bironenedesina-penubisales.pdf
    • http://my-arctic.com/uploads/1/3/0/5/130541763/74cb5.pdf
    • http://employerservices.ca/uploads/1/3/0/6/130604111/gofujixinosug.pdf
    • http://merakidestinationmanagement.com/uploads/1/3/0/2/130272606/wefebor.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_off00005801.bin
9b3f496e23c9cf5f480327b1442038bb44d23eb5bb5647f6f5c0f085bfb3eaf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5801 7788 bytes

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