Malicious PDF — malware analysis report

Static analysis result for SHA-256 26468a2dc781c393…

MALICIOUS

PDF

39.7 KB Created: 2020-04-05 06:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 953152442db629cdeaa2c8e50a8db84f SHA-1: c4fff33a6da18f23cc894a317d0d078970b38568 SHA-256: 26468a2dc781c3931428215ab853245340f04930239239dd8ea0ca3eb69bf508
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to the presence of a large number of external links, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The document body contains a mix of seemingly benign text and embedded URLs, reinforcing the link farm tactic. 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://organicchewcompany.com/uploads/1/3/1/4/131407028/131407028.html#etica+y+moral+en+enfermeria+ejemplos
    • http://goprotaras.com/uploads/1/3/0/5/130589189/b1973738c3a2.pdf
    • http://corbelnw.net/uploads/1/3/0/7/130775939/gokemepepe-vowolurapu.pdf
    • http://rdapiran.com/uploads/1/3/0/6/130639956/3897185.pdf
    • http://freshpaws.pet/uploads/1/3/0/5/130551063/b8d52e1fb0495.pdf
    • http://miasbatmitzvah.com/uploads/1/3/0/2/130273980/fezararemolokukotopo.pdf
    • http://jessicagebel.com/uploads/1/3/0/6/130604589/gubujip_nilokemoxepek_nowanamesuvav_budogibefini.pdf
    • http://towhomdoyoubelong.com/uploads/1/3/1/3/131398022/levut_pimevetobomug.pdf
    • http://beragojewelryandmore.com/uploads/1/3/0/6/130604240/gosego_tovivu_juvuzax.pdf
    • http://adelaideteam.com/uploads/1/3/0/6/130621583/2215815.pdf
    • http://robertgagnon.net/uploads/1/3/0/6/130604689/7886702.pdf
    • http://gendergifted.com/uploads/1/3/0/5/130550830/pokesoresolusufujuj.pdf
    • http://tothelettercopywriting.com/uploads/1/3/0/8/130814510/vobuludovesoz-xobele-dikodabilomi.pdf
    • http://growmywealth.net/uploads/1/3/0/4/130483577/tikelapuxi.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_off00007302.bin
0ee4d4c0d5e3b998dc5249c9e391b268700ff37555d9bdebad65e0daf0258d65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7302 7972 bytes

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