Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a027ad530fcf24…

MALICIOUS

PDF

30.6 KB Created: 2020-04-05 05:13:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 42da415eb7abd64c6cf344a2d14a7fb9 SHA-1: d0f665f503fc6b424a1351625aefba7420f099ea SHA-256: 97a027ad530fcf2466470611d32eceff236b71918202a24e87e3220a4d04c0d3
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a collection of other PDF files hosted on various domains, such as http://salonthalia.org/uploads/1/3/1/0/131069763/mafawowove.pdf. This behavior is consistent with a link farm or a distribution mechanism for further malicious content.

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://levelupwithlisa.com/uploads/1/3/0/6/130621132/130621132.html#carita+de+un+ni%C3%B1o+feliz
    • http://salonthalia.org/uploads/1/3/1/0/131069763/mafawowove.pdf
    • http://treinasoft.net/uploads/1/3/0/8/130873791/b64d11e47087.pdf
    • http://santostreeservice.com/uploads/1/3/1/3/131380582/ronunutenevot.pdf
    • http://bambibrock.com/uploads/1/3/0/5/130550976/564574.pdf
    • http://intergrativehealthandperformance.com/uploads/1/3/0/8/130874340/cffc7086f3.pdf
    • http://ryan-armstrong.com/uploads/1/3/0/4/130483413/1182502.pdf
    • http://coachlisawelsh.com/uploads/1/3/0/7/130775712/477edfccd4.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_off00004f78.bin
0d6d2ae416ed0f6b073778c09eea07bf97434aa377c4f8ca167dc376b5ad58b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F78 7904 bytes

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