Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca00a9bf85ef9670…

MALICIOUS

PDF

33.0 KB Created: 2020-06-24 04:44:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e049b3433e12c5c38f6ac8a6c8fe3e9 SHA-1: 4eab7f639f9d932e19477a99575ee72ad776b569 SHA-256: ca00a9bf85ef9670f16de0fd044bdcfea256ec225529293fd9baa3d5144a2000
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a link farm, indicating a large number of external links. The document body presents itself as a 'Manual de tramites' and embeds multiple URLs, suggesting a social engineering lure to direct users to potentially malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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://hostmaster.farmersunion.coop/uploads/1/3/1/8/131872130/131872130.html#manual+de+tramites
    • http://webdisk.tantardiniart.com/uploads/1/3/0/9/130969311/4450321.pdf
    • http://getyourselfoutofpain.info/uploads/1/3/1/4/131454065/8615a758754.pdf
    • http://jux.yezfoto.dk/uploads/1/3/0/3/130323335/1780448.pdf
    • http://samwilsonracing.com/uploads/1/3/0/4/130435881/zuparikuzofiteb.pdf
    • http://meilleurereduc.com/uploads/1/3/0/5/130588349/nurajelorofepipi.pdf
    • http://ot-time.co.za/uploads/1/3/0/5/130543121/lifego.pdf
    • http://hostmaster.haptotherapiekoningsweg.nl/uploads/1/3/0/6/130605387/gigatotozeluduzofepi.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_off000043ef.bin
c0df52b48cb54ab8164adf7259e219d67d464173e25d7ff7abe466ba953e94a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43EF 4748 bytes
font_01_sfnt_off000053e5.bin
cedc1d163658b20981acf798a61a67f1a29e150cd10b81ed551af4f520df1b74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E5 11356 bytes

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