Malicious PDF — malware analysis report

Static analysis result for SHA-256 993f0660ab4d858f…

MALICIOUS

PDF

27.7 KB Created: 2020-05-16 16:56:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e4e53c13d6ffc4f33daf474559a834e SHA-1: 0843ea8f99aa8d086c0c64651740d2475cb0b077 SHA-256: 993f0660ab4d858ff9d0d712e9b08cbbe172b2469a69053e7717c1d611979a90
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains references to these URLs, indicating they are the primary payload. 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://artroom4.com/uploads/1/3/1/4/131483185/131483185.html#aua+urinary+symptom+score+pdf
    • http://gillisassociates.ca/uploads/1/3/0/6/130639583/3479653.pdf
    • http://thepureimagination.com/uploads/1/3/0/2/130287291/sukuja.pdf
    • http://thedallasinstitute.org/uploads/1/3/0/2/130289427/fupimigugoxiluvokux.pdf
    • http://wendieelovich.com/uploads/1/3/0/6/130604521/d1b09a06.pdf
    • http://pyrgas.net/uploads/1/3/0/7/130740184/97a030bc408646a.pdf
    • http://metersnelectronics.com/uploads/1/3/0/9/130969800/xipozapobudakamon.pdf
    • http://ptjohanostberg.com/uploads/1/3/1/1/131163857/2327350.pdf
    • http://cwrhoffmann.com/uploads/1/3/0/6/130640179/3f8d6ca9987d.pdf
    • http://laperezstyle.com/uploads/1/3/0/3/130313123/32a01096b1.pdf
    • http://ndcca2016.com/uploads/1/3/1/3/131384688/xupivagipes.pdf
    • http://origintheatrical.com/uploads/1/3/0/4/130476148/binifalamoxo_gimativ.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_off000045e5.bin
662cea2842f88bb4ec8517a0bcc7d70bf385eb6cee472b0a149f7f9f66f44476		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45E5 8668 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.