Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e8b182154ab1828…

MALICIOUS

PDF

43.1 KB Created: 2020-04-03 02:20:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8d493e2c90dbef34ad02efd3a378cc9d SHA-1: ef344cf8ba09378133e39baea1ac9f80947a925f SHA-256: 4e8b182154ab1828629b95e62f138546c41738bc48d9dbc314495f96d2c3e62f
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, contains a URL pointing to 'claybon.shop' and lists numerous other PDF URLs hosted on various domains. This indicates the primary function is to act as a link farm, potentially for SEO manipulation or to distribute 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://claybon.shop/uploads/1/3/0/6/130640049/130640049.html#ley+de+embudo+en+ingl%C3%A9s
    • http://livingwordhouma.net/uploads/1/3/0/6/130621455/xarod_rufexezesa.pdf
    • http://drahmadsleep.com/uploads/1/3/1/3/131398479/d1637d028bc7c59.pdf
    • http://mumsandmore.ca/uploads/1/3/0/6/130604512/4549281.pdf
    • http://luckyrabbiteditions.com/uploads/1/3/0/7/130775217/joxuwoxilu.pdf
    • http://www.rawindianhairs.com/uploads/1/3/0/5/130539370/xotomuwujegab_riveta.pdf
    • http://epiphany-cafe.com/uploads/1/3/0/5/130540246/mafelizudopexuxo.pdf
    • http://whatsappmainonta.com/uploads/1/3/0/6/130604737/xujimiwemurixoratit.pdf
    • http://chapmanfarrellgroup.com/uploads/1/3/0/7/130738969/401781.pdf
    • http://miriamscleaningservice.com/uploads/1/3/0/2/130291373/dutonuwagato.pdf
    • http://ballyhuni.com/uploads/1/3/0/6/130620380/nudabik_tijuzezip.pdf
    • http://pureluxuryliving.com/uploads/1/3/1/4/131482941/watim.pdf
    • http://parcels4pets.com/uploads/1/3/0/7/130740513/6418099.pdf
    • http://elakaimunnar.co/uploads/1/3/0/5/130550980/5c7c5cffecfd.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_off00007daa.bin
47e9eee976718a57bca9eb630a26d001e9afd1aa464e3246ca68a4ebbd401303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAA 8888 bytes

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