MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm pointing to compromised WordPress sites and disposable hosting. The embedded URLs, such as 'https://smidgel.ru/uplcv?utm_term=barron%27s+visual+dictionary+french+pdf', are likely used to redirect users to phishing or malware download sites. The PDF structure and URL patterns suggest an attempt to exploit user trust through deceptive content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://smidgel.ru/uplcv?utm_term=barron%27s+visual+dictionary+french+pdf PDF link annotation
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/h7dlns017ujedupd9ljlb5n3a2/mifuwudujagorakofonalano.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b76f83d823c---27394850311.pdfIn PDF document text
- http://hainescentreasia.com/images/file/kezimuzozekup.pdfIn PDF document text
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/af82b9f1c2e2d53f731134587382d37e/95446582194.pdfIn PDF document text
- https://turbooto.vn/upload/files/5882023727.pdfIn PDF document text
- http://mp-journal.com/media/file/dilarepaduximozakuwufu.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16079bc60734a4---94378785939.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/3ddcf2f3c8ce837ad9eaa0619c761c7b/5908617365.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/e09bea876b8228ca198c2471d5dbe10a/53291774155.pdfIn PDF document text
- http://sivam.pl/files/file/25906294164.pdfIn PDF document text
- https://davaocarrental.com/images/file/5797112501.pdfIn PDF document text
- http://bjdfszwy.com/filespath/files/20210805031600.pdfIn PDF document text
- https://rubin2000-distribuitorshop.ro/userfiles/file/puganasabupefajaxasi.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ba93cd7c5c---79139948672.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/67846172634.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/b688067f638f63249e2362779bb92c35/bedixarusib.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/mogibijisidosef.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090835965d37---vudizuvabusido.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a447cce4c38---doxefasebafofipawogupowu.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c43f50ed223---8886231331.pdfIn PDF document text
- http://tlxzkj.com/uploads/file/26202337109.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/ferabevigatigakoze.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/30051948559.pdfIn PDF document text
- http://libron.pl/fckupload/assets/file/zuvileneligawotazadel.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_off0000caf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAF2 | 16424 bytes |
SHA-256: 359e1bac50c0005b857a8ba5a56af8607944588e04b919affb5b5c2526bd1a91 |
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font_01_sfnt_off0000f58c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58C | 11084 bytes |
SHA-256: d232bf79c699937b0d1c03f8d2214eaa15dd11efa86e72f368c3cc859e3632e7 |
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font_02_sfnt_off00010f74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F74 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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