PDF malware analysis — malicious · 5d81562470d58cae

MALICIOUS

PDF

91.5 KB Created: 2022-04-23 16:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18

MD5: d3d9402d4d1bb6f018744a916f351294 SHA-1: 3b83fab76bb654046fbf28e4edecdd0d884597ed SHA-256: 5d81562470d58caec205d8f3d0d795063d87f8fcb43670af05547d5804e77379

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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 https://cafij.co.za/YmrXLWy8?keyword=cuidados%20de%20enfermeria%20en%20la%20administracion%20de%20medicamentos%20por%20via%20intravenosa PDF link annotation
- https://xitodilizunew.weebly.com/uploads/1/3/4/1/134108755/871750.pdfIn PDF document text
- https://leduxuma.weebly.com/uploads/1/3/2/8/132814900/0fc5ec023370dd2.pdfIn PDF document text
- https://vokesilito.weebly.com/uploads/1/3/4/4/134400786/tazuwogirefusen-satovotul-tekenez.pdfIn PDF document text
- https://kutepuwabaluv.weebly.com/uploads/1/3/2/6/132681670/senetu-nudewi.pdfIn PDF document text
- http://vipdiler.ru/files/file/82340273115.pdfIn PDF document text
- https://khonggiansangtao.com/platformecom/img/upload/file/16397991300.pdfIn PDF document text
- http://www.painters-restaurant.com/userfiles/file/55158597647.pdfIn PDF document text
- https://wabibazo.weebly.com/uploads/1/3/5/2/135295983/3300331.pdfIn PDF document text
- https://xibopenevitamog.weebly.com/uploads/1/3/4/4/134488628/93ee2.pdfIn PDF document text
- http://garoli.com.br/js/kcfinder/upload/files/balawekuk.pdfIn PDF document text
- https://favasebuwakule.weebly.com/uploads/1/3/4/3/134328846/fuwovawuk.pdfIn PDF document text
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/3982c6a99469aaef1896e661b1659288/60129046653.pdfIn PDF document text
- https://varozowixofifop.weebly.com/uploads/1/3/0/8/130814066/fajenaravex.pdfIn PDF document text
- https://wurotifaji.weebly.com/uploads/1/3/4/3/134315076/949033.pdfIn PDF document text
- https://wagizubim.weebly.com/uploads/1/3/4/4/134470033/wufido_bogumaromip_woropem.pdfIn PDF document text
- https://busedulaxuxelo.weebly.com/uploads/1/3/1/3/131379622/770467c2f3c9f.pdfIn PDF document text
- https://pativezakuzorad.weebly.com/uploads/1/3/4/2/134266084/9953396.pdfIn PDF document text
- https://daxulidotuviwo.weebly.com/uploads/1/3/4/5/134597057/1272201.pdfIn PDF document text
- https://zupakikaxabu.weebly.com/uploads/1/3/1/3/131380404/7604509.pdfIn PDF document text
- http://another-partner.morefriendship.com/upload/files/fewimuvepokox.pdfIn PDF document text
- https://zobadesozuxuj.weebly.com/uploads/1/3/5/3/135326391/071afe67af6.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fb65.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB65	10976 bytes
SHA-256: `d91fac78302376d84d691d771a002714e43785c55a4c9b5504610e8394dcdb77`
`font_01_sfnt_off000114ea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x114EA	18368 bytes
SHA-256: `855352453f809f57e8d85a3391d01dc2e94a0c40ebad6d0921ea542e19edee1f`
`font_02_sfnt_off000143f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x143F4	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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