MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malicious content delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b05111d2425---46569778498.pdf In PDF document text
- https://vegan-eshop.cz/data/file/98581310898.pdfIn PDF document text
- http://silesiacapital.eu/data/file/titunojode.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a74d5b178b1---kiliwopobetetuzikokefa.pdfIn PDF document text
- http://utuin.net/files/fckeditor/file/lilogumapetirarigebenozub.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/5a39412fe98a6a75426a8b98e58aa5e5/pejurabojutivosapej.pdfIn PDF document text
- http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/forosovojutekofude.pdfIn PDF document text
- http://jhroseclassof77.com/clients/45984/File/20376497416.pdfIn PDF document text
- https://promise-land.com/upload/file/wemujifomagakedi.pdfIn PDF document text
- http://charivne.info/images/file/2650244064.pdfIn PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b62a1aff3---xilazupa.pdfIn PDF document text
- http://dlzj.net/upload/files/20210624202340692529.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/qp8q3h7lgu6fi7piek9ofr8d43/tezozudinuli.pdfIn PDF document text
- http://kennedy-jackson.com/clients/f/f7/f78508644b517540cdb1549d93860f53/File/81962162215.pdfIn PDF document text
- http://asiadomainstore.com/userfiles/file/detom.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=unexpired+rent+meaningPDF 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_off0000eff0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF0 | 10512 bytes |
SHA-256: 1f4ea12b1ad2a93126daf93355d0cbadca5f9d21b3c25adf3f2036ec0fbc82d0 |
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font_01_sfnt_off00010799.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10799 | 17768 bytes |
SHA-256: ad7bef547eeedc79e4aded01dde6f31bc1f4c5769e721cb23241511f7bab8964 |
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font_02_sfnt_off00013657.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13657 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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