Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f5a7b0d06b969e…

MALICIOUS

PDF

38.6 KB Created: 2020-04-09 07:04:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 926b617676ad32125d7e3146add6714d SHA-1: 3a2ed24471cf330f761513ded95010ba092172b3 SHA-256: 29f5a7b0d06b969eb33c65ff24363f4158ba5ff01261dfbc0d72db4ba94e7018
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. The document body, though partially corrupted, contains a title related to mathematical functions and graphics, suggesting a lure. The primary attack pattern involves directing users to numerous external domains, likely for SEO spam or to host further malicious content. 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://damicoarchitecture.com/uploads/1/3/0/7/130738893/130738893.html#tipo+de+funciones+matematicas+y+sus+graficas
    • http://jewelrybybarb.com/uploads/1/3/0/6/130621800/laxufevosi-xifafibeju-temopesube.pdf
    • http://crystalnetworkoutlet.com/uploads/1/3/0/5/130588749/jijetebube-zamum.pdf
    • http://spiralsolutions.org/uploads/1/3/0/4/130477146/ragiru.pdf
    • http://changetheface.com/uploads/1/3/0/4/130488417/kazetojujuxata.pdf
    • http://eliteexpeditions.net/uploads/1/3/0/7/130738846/1914200.pdf
    • http://lowcostphotobooths.co.uk/uploads/1/3/0/6/130621882/8658115.pdf
    • http://1corin1531.com/uploads/1/3/0/6/130639835/zewadorigejidojovut.pdf
    • http://meadowlarkstudios.net/uploads/1/3/0/7/130739204/fetogupegew_soxopiwirabojok_pasikabasedu.pdf
    • http://lawyerfrisco.com/uploads/1/3/0/4/130435937/46f8b1dd1c64.pdf
    • http://magicalspincasino.org/uploads/1/3/0/5/130551011/buxegamirolagara.pdf
    • http://welikitretreat.com/uploads/1/3/0/5/130551115/8821461.pdf
    • http://utahincident.com/uploads/1/3/0/4/130476563/rutod.pdf
    • http://armacconstructionservices.com/uploads/1/3/0/6/130603995/judozaleberobupide.pdf
    • http://wawrzynlaw.com/uploads/1/3/0/5/130550722/3779337.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_off00006a76.bin
5b7123ae4d96416cb1f729c6dae319d604fd7dfd48723d3486c2fc91ed1727d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A76 8908 bytes

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