Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed193463355cb9c…

MALICIOUS

PDF

42.9 KB Created: 2020-04-10 12:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4f48e0c96397df4e475349b06bee6513 SHA-1: f875050c1d78d8e2f757493995feaa05d07475cd SHA-256: 3ed193463355cb9c73b8a6fb640573324042d3aff773ab4ce6a0ca18823425ef
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to database creation in Excel. The presence of numerous PDF links hosted on various domains points towards a link farm strategy to distribute malicious content or traffic. 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://montageprojectservice.com/uploads/1/3/1/3/131398428/131398428.html#crear+bases+de+datos+con+relaciones+entre+tablas+en+excel
    • http://ohmylox.com/uploads/1/3/1/3/131379543/rilabinejuxukukom.pdf
    • http://rosepartynyc.com/uploads/1/3/0/3/130313383/12e0537d.pdf
    • http://escaperoomsingeorgia.com/uploads/1/3/0/5/130542775/fa33af05.pdf
    • http://tedvictor.com/uploads/1/3/0/6/130604090/9134523.pdf
    • http://thesportschampishere.com/uploads/1/3/1/4/131407163/napag.pdf
    • http://trayjohnson.com/uploads/1/3/0/5/130550826/6363194.pdf
    • http://marvelusenterprises.com/uploads/1/3/0/6/130604203/060a84.pdf
    • http://generationsgenealogy.com/uploads/1/3/1/4/131438092/kuxelejalik.pdf
    • http://romeda.net/uploads/1/3/0/6/130620874/38a95218c1cee.pdf
    • http://harahardingart.com/uploads/1/3/1/4/131437513/4e5d1cb5.pdf
    • http://pinkbatmotorsports.com/uploads/1/3/0/2/130271132/5809462.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_off00007cfc.bin
ec2a9a44eb53a39f143db962cccc35f7a9af1ffebe74dea7d322d174860e0bcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFC 8600 bytes

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