Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99fc614f7b949d6…

MALICIOUS

PDF

39.6 KB Created: 2020-03-31 01:06:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 95d59d820a128c5ebd15f4972c458785 SHA-1: 25ee96b5b0848dd530b139c2171d064a08a880ce SHA-256: e99fc614f7b949d6a96fc2dbad874fe28aa7d85d4b77d7dde17db8a9a86f22fa
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, characteristic of a link farm. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to distribute malicious content or engage in SEO abuse. The embedded URLs point to various domains, suggesting a broad distribution network. No scripts were extracted, and the document body is largely unreadable binary data, making it difficult to ascertain the exact nature of the payload beyond the link farm. The primary attack vector appears to be directing users to external resources via these links.

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://lancasterec.com/uploads/1/3/0/7/130740262/130740262.html#triangulo+acutangulo+obtusangulo+e+retangulo
    • http://matthewsncgutters.com/uploads/1/3/0/2/130271080/8636331.pdf
    • http://dragondrones.org/uploads/1/3/0/5/130542692/latezewotidubibexo.pdf
    • http://cfdaccounting.net/uploads/1/3/1/4/131408772/f3999bcc05456f0.pdf
    • http://sedonajewelryappraisals.com/uploads/1/3/0/6/130621307/ba3b20.pdf
    • http://takasshoetique.net/uploads/1/3/0/5/130590361/2d0b927782889.pdf
    • http://drwenterprises.net/uploads/1/3/0/8/130814360/7090894.pdf
    • http://priorityrecruitingsolutions.com/uploads/1/3/0/7/130739052/nebivuvazititivasogo.pdf
    • http://rotokinetics.net/uploads/1/3/0/5/130543052/dufezikiwuval-movijenupojisi-pinajumatujigef-widajorodejij.pdf
    • http://pcbyrd.com/uploads/1/3/0/5/130589124/6514bb938f46.pdf
    • http://lakeviewtheseries.net/uploads/1/3/0/4/130488470/ec34a8e3b45f43.pdf
    • http://tweetsoup.com/uploads/1/3/1/4/131407511/pagawop-webawomo-jolez.pdf
    • http://defragrancehouse.com/uploads/1/3/0/4/130479210/9cce66ca.pdf
    • http://huckleberriesartisanpastries.com/uploads/1/3/0/5/130590158/8a75c291.pdf
    • http://materieleselconstructor.com/uploads/1/3/0/9/130969842/8651945.pdf
    • http://andoverphotobooth.com/uploads/1/3/1/4/131452743/zojed_bogukiw_fixetisito_vavisigu.pdf
    • http://melonismorningnudge.com/uploads/1/3/0/2/130288465/gopigidedorux.pdf
    • http://shantireikiyogawellness.com/uploads/1/3/0/9/130969714/4890175.pdf
    • http://shawnbyoung.com/uploads/1/3/0/5/130588721/8986021.pdf
    • http://flatlinermusic.com/uploads/1/3/0/7/130739237/xorowadokamuje_todonilovanar_wegowox_fatanadowa.pdf
    • http://dasoulolife.com/uploads/1/3/0/6/130639574/moxebased.pdf
    • http://openingeyesllc.org/uploads/1/3/0/7/130775735/bibis.pdf
    • http://mdlawschaumburg.com/uploads/1/3/0/2/130288301/busasumabusa.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_off00006df3.bin
9a256fc377486148e023a1d93d8256313fb35c2feef764715dc0e5ffea375979		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF3 9852 bytes

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