Malicious PDF — malware analysis report

Static analysis result for SHA-256 54e1170429a95a5a…

MALICIOUS

PDF

45.6 KB Created: 2020-04-02 21:22:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 883735768a841c693dae9fe8a71d4178 SHA-1: f8246dba78299c4b275f9dc74a0579f33270ac89 SHA-256: 54e1170429a95a5a4bccc7c1bc5ed3da31935af6745981fc6335d397024d90ef
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted across various domains. This pattern is indicative of a link farm or SEO spam campaign, potentially designed to drive traffic or distribute further malicious content. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, a tool often abused for creating such spam documents. No scripts were extracted, limiting the analysis of direct payload execution.

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://waggingtailsproject.org/uploads/1/3/0/6/130604210/130604210.html#minor+insanity+5e
    • http://maquillajeparaboda.tips/uploads/1/3/0/4/130476458/806385.pdf
    • http://fithappy.info/uploads/1/3/0/2/130289498/5624693.pdf
    • http://retfish.org/uploads/1/3/0/4/130491947/konotepekeromenin.pdf
    • http://raininspainspeechservices.com/uploads/1/3/0/7/130740437/2502603.pdf
    • http://mindfulnessbrigade.com/uploads/1/3/0/6/130605387/dogis-vawomasawetaba-sagufatidok-sarisixusot.pdf
    • http://2eam.com/uploads/1/3/1/3/131383942/pinanulebisere.pdf
    • http://wingsuitcoaching.com/uploads/1/3/0/7/130739573/7870781.pdf
    • http://topofillinois.org/uploads/1/3/1/3/131398567/rapigefatikusem-fodijipazado-kisalaliz-jumanaja.pdf
    • http://hannahcooke.com/uploads/1/3/0/6/130639720/8714433.pdf
    • http://gibsonglobaleducation.com/uploads/1/3/0/2/130287503/7748808.pdf
    • http://davidsonhomes.co/uploads/1/3/0/7/130775475/76ce28df.pdf
    • http://iptvdatuga.site/uploads/1/3/0/8/130814066/16a697d8b48447.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_off00008c1b.bin
6a132f2538878834020964c30c82ed2912cfd0cb14455abeeb0eaed4d93d698a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1B 7792 bytes

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