Malicious PDF — malware analysis report

Static analysis result for SHA-256 5905cae02aa7a2a5…

MALICIOUS

PDF

33.7 KB Created: 2020-04-08 00:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8625bef1414b37737324bee2fd415570 SHA-1: 9c3bb34590182eae9543f96b4f7c2b329a150438 SHA-256: 5905cae02aa7a2a5df8f539d41cbd1e10c4ff15df15ace07c16c9503cb3e735c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous external links to other PDF files hosted on various domains, indicative of a link farm or SEO spam campaign. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The embedded document body text also contains one of these URLs, suggesting a potential lure or redirection mechanism. The primary goal appears to be driving traffic to these external resources, likely for advertising or further malicious redirection.

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://fabuloustouchdetailing.com/uploads/1/3/0/7/130776016/130776016.html#the+eighth+heroine+location
    • http://goimmaculatafootball.com/uploads/1/3/1/0/131071286/dolegoji.pdf
    • http://winxkid.com/uploads/1/3/1/4/131437106/603320.pdf
    • http://hiltonyoga.com/uploads/1/3/0/9/130969220/5925220.pdf
    • http://boardventure.com/uploads/1/3/0/5/130589318/vebodixu.pdf
    • http://voteagainsthillsidetax.com/uploads/1/3/0/6/130639875/712031.pdf
    • http://veganagogoorganics.com/uploads/1/3/0/4/130490053/cf8e99a51de.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_off00005b8a.bin
6f500a40612c2e86809ccdfcce03385ba2689057376922c95ebc562d688d169c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8A 7676 bytes

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