Malicious PDF — malware analysis report

Static analysis result for SHA-256 c59ff52990fee20b…

MALICIOUS

PDF

60.1 KB Created: 2020-06-22 09:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a6dffa21b93373384726dd944ff0370a SHA-1: 9a3a5f3d8aa20b17572dcc94c6caeea992f255ee SHA-256: c59ff52990fee20b5b8d098168e8143e4057e392b96aa72c20e137c22e157430
92 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Canon powershot sd1300 is manual pdf' and embeds a large number of external links. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://zenlotusyoga.com/uploads/1/3/0/5/130539798/130539798.html#canon+powershot+sd1300+is+manual+pdf
    • http://aogexample.aogdemo.site/uploads/1/3/1/4/131482822/3114650.pdf
    • http://lovingtreatments.com/uploads/1/3/1/6/131607103/nezizidobupa.pdf
    • http://hostmaster.ruthscurr.co.uk/uploads/1/3/0/4/130490609/nekig-dinatutogari-xalipomato-jezexofalig.pdf
    • http://nostalgicsigncompany.com/uploads/1/3/1/0/131069904/4cdaaf764.pdf
    • http://mta-sts.mail.meetthemessenger.com/uploads/1/3/0/9/130969221/2966009.pdf
    • http://mta-sts.dxawards.com/uploads/1/3/1/3/131398252/nuwezuxatafu_wumepemapedefaz.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aadb.bin
a50d7ed5dcadabdf0ffa6895cd8a7f4cdb7f0e55fa7a44e7d85ac830b8feb004		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAADB 5636 bytes
font_01_sfnt_off0000bdf4.bin
7b04468c4bf71f6360326ef9dfc5d866349d8231c32cbe4b7ffd948bc2698d02		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF4 11372 bytes

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