Malicious PDF — malware analysis report

Static analysis result for SHA-256 4315b8e433338229…

MALICIOUS

PDF

36.0 KB Created: 2020-03-20 06:30:51 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6932e49de11858296dc556b442e4144b SHA-1: ffcff6d2dd728528060a21f540113d011fc672b6 SHA-256: 4315b8e433338229efb29929a1bbec54f4715cfc19c36c37582bd6e19ea17a30
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. One of the extracted URLs is http://tuitionhotsauce.com/uploads/1/3/0/9/130969681/130969681.html#concepto+de+recetas+de+cocina+wikipedia. The document body contains garbled text and some of the extracted URLs, indicating it is likely a lure document designed to host or redirect to 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://tuitionhotsauce.com/uploads/1/3/0/9/130969681/130969681.html#concepto+de+recetas+de+cocina+wikipedia
    • http://www.pedrolisbontours.com/uploads/1/3/0/5/130541745/nisapifoxojev_kopadu.pdf
    • http://www.marketmealex.com/uploads/1/3/0/4/130475980/821868.pdf
    • http://nwm2.club/uploads/1/3/0/7/130776693/pigesamu_zimivak_bidurewopipepag.pdf
    • http://katedanvers.com/uploads/1/3/0/4/130476053/vesuwofezuf.pdf
    • http://www.intellectualdisabilitiesonline.com/uploads/1/3/0/2/130287211/2313505.pdf
    • http://caboandcake.com/uploads/1/3/0/7/130776795/kuvibarufivosanijo.pdf
    • http://abc-c.org/uploads/1/3/0/3/130323295/dudafomegegi.pdf
    • http://jasongerstenkorn.net/uploads/1/3/0/6/130604182/f29c767b2e2e85.pdf
    • http://www.affectedfilms.com/uploads/1/3/0/2/130289503/kawoludenutakesine.pdf
    • http://tennesseemusicfactory.com/uploads/1/3/0/6/130620927/b4ec7de7.pdf
    • http://bravojazz.com/uploads/1/3/0/4/130478174/1bae7b.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_off000066ba.bin
7549ed438cade65cfb8aa1e38d08c20dd60f789e8bb9ae19b959040c1ca9ad04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66BA 7200 bytes

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