PDF malware analysis — malicious · 4e31f4765b67d17f

MALICIOUS

PDF

76.2 KB Created: 2022-04-09 22:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 791a57edbafbea713b7c748260b4acee SHA-1: 6fababf7bb68059b2b449746c0c653404e61cbe4 SHA-256: 4e31f4765b67d17f302521be3202d54e166c81ba816aa1bf5e083a91fc17b126

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://lazav.co.za/YmrXLWy8?keyword=reading%20intervention%20strategies%20for%20kindergarten PDF link annotation
- https://degitetebumike.weebly.com/uploads/1/3/1/8/131857056/zepamanewire.pdfIn PDF document text
- http://caerulumpharma.com/upload/files/fefosuxa.pdfIn PDF document text
- http://world-spa-resorts.com/dok/zafezopadijabukulimogag.pdfIn PDF document text
- http://rivebistro.net/ckfinder/userfiles/files/29890267877.pdfIn PDF document text
- https://okud-istra.hr/userfiles/file/defanivizetarepejukutevol.pdfIn PDF document text
- http://architettoletiziamasciotta.eu/userfiles/files/tojobepevavuwijutadidod.pdfIn PDF document text
- https://naves.cz/res/file/toxowalimikowudito.pdfIn PDF document text
- https://bukanunale.weebly.com/uploads/1/3/5/9/135974016/ec52eae.pdfIn PDF document text
- https://fukubumo.weebly.com/uploads/1/3/4/0/134016705/vepatidaz.pdfIn PDF document text
- https://wosumugip.weebly.com/uploads/1/3/4/8/134867897/bixigejob-jodukitodo.pdfIn PDF document text
- https://popivuzumozula.weebly.com/uploads/1/3/4/5/134500063/5197826.pdfIn PDF document text
- https://tuzatorigipixaz.weebly.com/uploads/1/3/4/3/134321964/ce17362cb1f81d5.pdfIn PDF document text
- https://www.nutfruit.org/js/admin/ckeditor/plugins/kcfinder/upload/files/26981056856.pdfIn PDF document text
- http://cesvil.it/filesUploads/file/36028374835.pdfIn PDF document text
- https://pawikewam.weebly.com/uploads/1/3/4/4/134445239/vumuxejemul.pdfIn PDF document text
- https://empresa-venta.hr/files/sujivawunaxariti.pdfIn PDF document text
- https://xoforovujedopod.weebly.com/uploads/1/3/4/5/134587448/gotoxutonorak-petivararezu-nosip.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/50abf3f3fa27d06998d0d4f2282c2592/55571579930.pdfIn PDF document text
- https://kavikazu.weebly.com/uploads/1/3/5/3/135392310/2867985.pdfIn PDF document text
- https://tedojumutu.weebly.com/uploads/1/3/4/0/134042579/4137793.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_off0000c68c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC68C	10688 bytes
SHA-256: `2040f11aef85f0901221ce0183c41127ec98bb2b3c1f2dfba8a93bd1c678bb41`
`font_01_sfnt_off0000df01.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF01	16924 bytes
SHA-256: `753cbb3846cb1e7a68bee8b3d76e8a855169e5d281915ae885bc59de4715d308`
`font_02_sfnt_off00010ae8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10AE8	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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