PDF malware analysis — malicious · 4258532d6764c4ef

MALICIOUS

PDF

73.9 KB Created: 2022-04-10 11:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15

MD5: b3ef1a9391e0dcfa86d5f48043a9bfd8 SHA-1: f410e46f2ad6daaf7702f761d4adbd6f6dfba4e4 SHA-256: 4258532d6764c4ef574d48fc7ae5914b71714069c7c1885d3733ea1db7da940e

226 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9976

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.
ClickFix social engineering attack high SE_CLICKFIX

Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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.
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://wirut.co.za/YmrXLWy8?keyword=how%20to%20get%20full%20pc%20specs PDF link annotation
- https://nuxirudeduw.weebly.com/uploads/1/3/4/4/134442083/pujetuduvojuguvuse.pdfIn PDF document text
- https://munizifazu.weebly.com/uploads/1/3/4/3/134354015/1082e3d13.pdfIn PDF document text
- http://sv-orhidea.ru/upload/files/fezaze.pdfIn PDF document text
- https://vorebalulu.weebly.com/uploads/1/3/5/9/135962534/sipopixovatu.pdfIn PDF document text
- https://daxatuvumuna.weebly.com/uploads/1/3/4/8/134863787/wiramijozo.pdfIn PDF document text
- https://nasco-ye.com/uploads/file/depaxobotuvamipuxir.pdfIn PDF document text
- https://zezevavibafano.weebly.com/uploads/1/3/5/3/135325489/3643820.pdfIn PDF document text
- https://lodarexuxune.weebly.com/uploads/1/3/4/3/134352809/vababibazizovasopa.pdfIn PDF document text
- https://zavexirated.weebly.com/uploads/1/3/2/6/132695663/bisufagixusijag_vikasijemoki_jetebeluxad_nisifizofujan.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2022-4-10/20220410161313844675.pdfIn PDF document text
- https://pamenusunawot.weebly.com/uploads/1/3/4/0/134041165/vinodi_zovirikejebupu_goweweg_lomugaxogiloxo.pdfIn PDF document text
- https://mudafozaruxe.weebly.com/uploads/1/4/1/2/141289996/werakupunuxup.pdfIn PDF document text
- https://fedusinejedutim.weebly.com/uploads/1/3/4/0/134040989/78f0ef15d8fb11d.pdfIn PDF document text
- https://feropozu.weebly.com/uploads/1/3/1/4/131454035/7aee3.pdfIn PDF document text
- https://fetavagipiw.weebly.com/uploads/1/3/1/3/131380759/1196659.pdfIn PDF document text
- http://tachikawa-derma.biz/ckfinder/userfiles/files/8828865374.pdfIn PDF document text
- https://fixexetakofipu.weebly.com/uploads/1/3/3/9/133997797/punuvurikiremut-duluwole-xosefodobunusoz-keberiv.pdfIn PDF document text
- https://limiretila.weebly.com/uploads/1/3/4/4/134465375/3211483.pdfIn PDF document text
- https://solezoxi.weebly.com/uploads/1/3/4/6/134654925/papunavalimasojelu.pdfIn PDF document text
- https://joduzowulidu.weebly.com/uploads/1/3/4/4/134435513/8784535.pdfIn PDF document text
- https://atahca.pt/atahca_gestor/kcfinder/upload/files/gapopefar.pdfIn PDF document text
- https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/borejuzumekazelekago.pdfIn PDF document text
- http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/zipafoguwunujo.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_off0000bd53.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD53	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d56a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD56A	10376 bytes
SHA-256: `f40dc6fe953bf08e38f309776cfedf9c8eb4c01f919fc3316e3b9f0c93b5dff4`
`font_02_sfnt_off0000ed1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED1B	17088 bytes
SHA-256: `83c984717cba336338350d0411db4c4eba05d179933181e385ca3085e46cf7af`

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