MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights the nature of these links, which are often used to mask malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://archism.ru/uplcv?utm_term=essentials+of+treasury+management+4th+edition+pdf+free+download PDF link annotation
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/88afe417f938668292030d1858b48eca/xibivun.pdfIn PDF document text
- https://tselectromechanical.com/uploads/CKfiles/files/lajupiwovawimu.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/xowiwof.pdfIn PDF document text
- http://ruilong-ironwork.com/CKEdit/upload/files/93947120394.pdfIn PDF document text
- https://cdmsig2.com/ckfinder/userfiles/files/10113318130.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094175ae13c2---zodexaw.pdfIn PDF document text
- http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/81142068897.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/093c02d8a5d9d408d68b489125cb734a/migesegifuriz.pdfIn PDF document text
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/4ffda4d5d1862107c90bd9c6470efe8d/98001037402.pdfIn PDF document text
- http://navigator-33.ru/media/file/jeven.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/61b97a1763d4bf10c9e2a74fe0f6cf4f/jurekedow.pdfIn PDF document text
- http://vyveva.eu/UserFiles/File/fegudusexagedaxitokumirag.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730fea56295---mitagodofukologunej.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/0afd152b1b1012c65bf892a9a2b867f4/99812240452.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a63b48672b4---95059242276.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/007877e7f8e7d59824446e451c7ddf94/46071547032.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/g7enldl1468cpoq4pjrkbvk1ri/varixetusuwoja.pdfIn PDF document text
- http://amandamaitland.com/images/file/golasekeg.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081390b9f4b9---56294480945.pdfIn PDF document text
- https://muguet.fr/sites/default/files/file/selukaporaruxuzizi.pdfIn PDF document text
- http://clear-es.net/yamituki-n/uploads/files/fisexolas.pdfIn PDF document text
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/7955836316.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aca0e0d0cd1---37166698411.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/79e0a9d326f73a8bdab6d8aaffe621b1/sumolof.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_off0000dfc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFC9 | 11308 bytes |
SHA-256: d57374ec02314c11538c2997862c3f28569ea3e4344c56a006c1f73bf2407184 |
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font_01_sfnt_off0000fa15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA15 | 17844 bytes |
SHA-256: 04be4b91483c558bf921a6f0d17925c9bcc160053d379c912294ad02811be1d1 |
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font_02_sfnt_off0001288f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1288F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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