MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous embedded URLs that point to compromised websites, likely intended to lure users into clicking them. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using disposable or compromised hosting for link distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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://crewmak.ru/uplcv?utm_term=250+linear+feet+to+square+feet
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/90f5f36c63423eb90e88fc9e47c85660/nigepexaxulasar.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/puh4qm7ui9asvs88ss01qa89kk/57547747354.pdf
- https://go2germany.ru/files/file/43986511984.pdf
- http://ikhmongol.mn/ckfinder/userfiles/files/80333352282.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/1761168387e5beacb360bae4d5fd5ae7/jomususuw.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099fd65aca15---64187543065.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd8d9025ed---vakiwedusebur.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/de9b3ab3cd2a156a48e8b2c87b2235e5/58170699471.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a471697b655---mewusavaleli.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/ikqc5akn8j8posnj7asdph6906/69213191733.pdf
- https://amitadevnani.com/userfiles/file/jolidejip.pdf
- http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/03d70f03d9b6b16a9d61324e75b91296/83852605724.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/d6af7873362944eae904eada3d37c210/gutikofuzilavifofozo.pdf
- http://dentish.ru/ckfinder/userfiles/files/95653079880.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609861a12a6d6---71640224986.pdf
- http://bawaconstructions.com/editorData/file/jesuzifolapobijol.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848543eafed---gokapanoziwu.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/d826598947cc81f61dd6112a3aae36aa/62176316605.pdf
- http://seoulmenu.com/uploads/files/66025057503.pdf
- http://alpha-cp.com/userfiles/file/88411421904.pdf
- https://aduanaldelvalle.mx/userfiles/file/kilezavixenaripax.pdf
- http://www.aportecnica.com/imagenes/editor/file/66074194620.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/1ceb67c0ac442a289efb2938a7b5ecee/pigebemafaki.pdf
- https://trotusgrup.ro/ckfinder/userfiles/files/degubafitu.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001253a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253A | 16792 bytes |
font_01_sfnt_off00013d51.bin27f4459d119d7f644b2494dddefe141b77b4fdd850adcb931bf106dc1e26df61 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D51 | 10732 bytes |
font_02_sfnt_off00015626.bin66066945f4ea2106606056b6633a02eb0c6984893a599caab55ee5d9d146f397 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15626 | 17708 bytes |
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