Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a563c4ff9964cbf…

MALICIOUS

PDF

40.1 KB Created: 2020-03-21 12:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 850e87b5558373bf70af5eacf21d4a17 SHA-1: 8a35b05269b9f11fc898e801378acf3fb83bb5d7 SHA-256: 9a563c4ff9964cbfb00c4b9c0be562f5bcc634c1dd620b7319579f8a6585a3e6
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. These links point to various domains, suggesting a link farm or a method to distribute malicious content across multiple sites. The document body contains garbled text and some URLs, reinforcing the idea that the primary function is to redirect users 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://drobgyn.net/uploads/1/3/0/7/130775489/130775489.html#ejemplos+de+las+propiedades+de+los+sistemas
    • http://ninarayviola.com/uploads/1/3/0/3/130379206/lupikutaduwad.pdf
    • http://ponerology.net/uploads/1/3/0/7/130739225/506c49e0920.pdf
    • http://rydde.services/uploads/1/3/0/4/130436337/99cec2afc7c.pdf
    • http://ruahexperience.com/uploads/1/3/0/4/130489054/solifokavebuwa.pdf
    • http://jllroundtable.com/uploads/1/3/0/6/130621374/4630197.pdf
    • http://leopoldomarino.com/uploads/1/3/0/5/130550750/be7a09.pdf
    • http://the-hemp-life.com/uploads/1/3/0/6/130605030/2117376.pdf
    • http://geekmediapro.com/uploads/1/3/0/2/130289345/be86812257.pdf
    • http://alarstrategy.com/uploads/1/3/0/6/130604187/kadosuzexasubefusuv.pdf
    • http://concreteomaha.net/uploads/1/3/0/7/130776739/5981074.pdf
    • http://tonycon.com/uploads/1/3/0/7/130738721/8892994.pdf
    • http://nghomeimprovment.com/uploads/1/3/0/5/130540359/7546100.pdf
    • http://eliteestatesales.info/uploads/1/3/0/7/130740466/1504629.pdf
    • http://nancymaldonado.com/uploads/1/3/0/4/130476216/kufezaxosiw.pdf
    • http://itssewleanne.com/uploads/1/3/0/6/130604548/88b26c.pdf
    • http://unrestrictedimages.com/uploads/1/3/0/3/130323127/4709374.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_off000072c9.bin
6b4b9b6f3727500b1ad080bc5728549380938fc7932263f38e730dd959bbf629		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C9 8296 bytes

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