MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to disposable or compromised hosting domains, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious, and heuristics identified it as a link farm on disposable hosting and potentially pointing to compromised CMS upload storage. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 5
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://corkpotters.com/images/zelabawirexumolowazeke.pdf In PDF document text
- http://sjhrz.com/images/upload/File/pubezosefidozafudo.pdfIn PDF document text
- http://bsp-oblspl.org/ckfinder/userfiles/files/fobulavafozobisupo.pdfIn PDF document text
- http://daotaoyduoc.org/wp-content/plugins/super-forms/uploads/php/files/79c17c560b9eee7f9af42f6cc9b0d04b/gufevarisizegutek.pdfIn PDF document text
- https://eltonltd.ru/sites/default/files/uploads/roraneroziputopawuti.pdfIn PDF document text
- https://yp05.com/_UploadFile/Images/file/winirewezuxili.pdfIn PDF document text
- https://8cj2aja7-8mxb.com/contents/files/52456168700.pdfIn PDF document text
- http://mateuszkucharski.pl/admin/file/41581515792.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021091004362269.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134631b91847---vorovodenek.pdfIn PDF document text
- https://contemporaryteas.in/admin/uploads/file/32192729094.pdfIn PDF document text
- http://oikoscoccatoarchitettura.com/userfiles/files/96120025486.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/mitomod.pdfIn PDF document text
- http://kammed.com/userfiles/file/mevuzukadixefopasorixo.pdfIn PDF document text
- https://benmoonpharma.com/userfiles/file/dufitagimonino.pdfIn PDF document text
- http://swvocal.com/data/se2/file/83669784798.pdfIn PDF document text
- http://lnshiyue.com/userfiles/file/20210907190702_1364361794.pdfIn PDF document text
- http://tysons-cafe.com/uploads/files/82461508726.pdfIn PDF document text
- https://aviseco.ro/userfiles/file/4340076054.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021090918024859.pdfIn PDF document text
- http://zensushialiso.com/uploads/files/1773148216.pdfIn PDF document text
- http://gu-bo.cn/uploads/files/31818807082.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/ae6b417e7f49dd2cd6dd82fafb85ab7d/27573294881.pdfIn PDF document text
- https://zerling.eu/nico/images/files/70971758307.pdfIn PDF document text
- http://charivne.info/images/file/18781131331.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=android+virtual+machine+for+macPDF link annotation
- 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_off0000e14a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE14A | 19724 bytes |
SHA-256: 2f5fc13505c3c2ba6e94b09c410231de65b562e0a5f7ba306173a84ec0e45356 |
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font_01_sfnt_off0001142a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1142A | 10720 bytes |
SHA-256: ce56b9431594f245174a28021059e5e94489306eb0d07a75d568b4966f79d8ef |
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font_02_sfnt_off00012c9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C9C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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