Malicious PDF — malware analysis report

Static analysis result for SHA-256 87c1fef32ee42d9e…

MALICIOUS

PDF

51.3 KB Created: 2020-04-10 06:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 58ec4304af2d22e5cf148a94510db837 SHA-1: 41cc1a7aa9b56796ba599e8e274404a9012ac07d SHA-256: 87c1fef32ee42d9e6d5656894ea126a953cbd0755ada55090feb89006b6fdaf1
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, 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 partially corrupted, contains text related to physics topics, likely as a lure. The primary attack pattern involves directing users to these external resources, which could host further malicious content or be part of a larger distribution network.

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://inlandcbd.com/uploads/1/3/0/6/130604411/130604411.html#temas+de+fisica+para+exponer+faciles
    • http://fll-niger.com/uploads/1/3/0/6/130605368/galulalix-jotuje.pdf
    • http://farmtoballet.org/uploads/1/3/0/4/130489649/bcde9.pdf
    • http://nathantbailey.net/uploads/1/3/0/2/130272577/9886614.pdf
    • http://jlgaproperties.com/uploads/1/3/1/4/131438556/11724d11b5c39.pdf
    • http://beasttviptv.com/uploads/1/3/0/2/130289735/ab1121dc0865.pdf
    • http://devinaaron.com/uploads/1/3/0/6/130621032/9279519.pdf
    • http://born2behealthydeals.com/uploads/1/3/0/9/130969445/renolinemirexumezaba.pdf
    • http://harvardbusinesscases.com/uploads/1/3/0/6/130620892/rukezomebuveda.pdf
    • http://winstonfarrierservice.com/uploads/1/3/0/8/130874034/e0871.pdf
    • http://theonlinescience.com/uploads/1/3/1/3/131379536/nudegivuralefasi.pdf
    • http://prosurfaceinstall.com/uploads/1/3/0/5/130544230/1354415.pdf
    • http://robinryme.com/uploads/1/3/0/8/130814065/2948669.pdf
    • http://whynotusmarketing.com/uploads/1/3/1/3/131397942/rogum.pdf
    • http://thetaooftarotonline.com/uploads/1/3/0/2/130272571/344417.pdf
    • http://tmariesells.com/uploads/1/3/0/5/130551154/xifab_visadubugoviwom_dimaxobuzavot.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_off00009f0e.bin
5a976280da57cf0afdbc71b141d7191352048f15184a7b76b6a0fed39d2bf29e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F0E 8612 bytes

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