Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d5e4e09aada4c1…

MALICIOUS

PDF

31.2 KB Created: 2020-04-11 14:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4d0ac3a0dd43364365f841c1cc3a2a46 SHA-1: cf6463df3b4b8da8fde73305a7dd9fd2d72ed9ac SHA-256: 80d5e4e09aada4c1cf55c6c351d765cd8cc743fcb0fc392becc3a5796b08cefc
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are dynamically generated and point to unrelated domains, indicating a link farm or SEO spam tactic. The document body mentions 'Enciclopedia Encarta descargar', suggesting a lure to download or access this software. The embedded links likely lead to further malicious content or phishing pages.

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://julianthology.com/uploads/1/3/0/2/130270914/130270914.html#enciclopedia+encarta+descargar
    • http://compulsivethriving.com/uploads/1/3/0/6/130604286/putebusivebitopuja.pdf
    • http://gasthof-richter.de/uploads/1/3/0/3/130323817/4556101.pdf
    • http://acupuncturepregnancynyc.com/uploads/1/3/0/2/130289503/jufafijakepomo_xolekos_nilusutone.pdf
    • http://sfscleaningservices.com/uploads/1/3/0/5/130589160/9917821.pdf
    • http://windallion.com/uploads/1/3/0/5/130543092/vekopuxegi.pdf
    • http://legalshieldassociates.biz/uploads/1/3/0/8/130874504/ec6ac544cc23abb.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_off00004f6f.bin
b8d9a086ac4197b5b8a926f1a7f0b87dae6e067cb25486b79932bf278c93d881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F6F 9316 bytes

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