MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, consistent with a spearphishing attachment delivery method.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 https://crewmak.ru/uplcv?utm_term=where+is+the+best+place+to+store+contacts+on+android PDF link annotation
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16144781a778ed---42196664155.pdfIn PDF document text
- https://learningsolution.ca/userfiles/files/86268806726.pdfIn PDF document text
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/xozituxobokopigidita.pdfIn PDF document text
- http://bigbazar.cz/is/images/FCKeditor/File/nofawabadufugo.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/64dd73339a2680019c0079be9b1e40b3/xokunafuwasarizovuxores.pdfIn PDF document text
- https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/nedotivef.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ufq9qjii96d7k3nb6orbpj9912/70646094032.pdfIn PDF document text
- https://sanvexe.vn/webroot/img/files/mubopifaxo.pdfIn PDF document text
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/84097992198.pdfIn PDF document text
- http://alexdisinfestazioni.com/userfiles/files/29193040128.pdfIn PDF document text
- http://delfosventures.eu/userfiles/files/vojaxef.pdfIn PDF document text
- http://nickelsgrafikdesign.de/ckfinder/userfiles/files/pinuzam.pdfIn PDF document text
- http://thechitay.com/uploads/userfiles/file/13484352330.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/wukafadunefizenot.pdfIn PDF document text
- http://eortak.com/img/fck_temp/file/xexaroboni.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369dde4473e---vuzerukasowarabiw.pdfIn PDF document text
- http://venusland.vn/app/webroot/img/files/81063267343.pdfIn PDF document text
- http://7m-shop.com/userfiles/file/35434587146.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/31934570143.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614164ba0194a---kebagepetabojizoxabuweful.pdfIn PDF document text
- http://zdrowejaja.com/Upload/file/30785428172.pdfIn PDF document text
- https://vientangluc.com/upload/files/rajamo.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139eb621078c---jefajojawafekapusiroxasop.pdfIn PDF document text
- https://5udua.com/contents/files/winenipesoxexuro.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/66d3844c6d869d5bfdf9c562f071dd01/falivesepevumodi.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_off0000bf77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF77 | 10744 bytes |
SHA-256: 08bf981213f271817b30d353817092c604f3881d0059e5c8d2e025e7bc03b649 |
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font_01_sfnt_off0000d7e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E8 | 17052 bytes |
SHA-256: 2bbc9c6f555701c67b4c85083877f90847777c2c88d535c45e828b283cb7ef28 |
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font_02_sfnt_off00010429.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10429 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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