MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support the attack pattern of directing users to potentially harmful external content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://inwebjor.ru/uplcv?utm_term=ukulele+christmas+songs+tabs+pdf PDF link annotation
- https://coffotea.com/uploads/files/202108180504026928.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/4vfhc7nco8l7ke69na4iguku3n/34142567931.pdfIn PDF document text
- https://bodegoncriollo.com/userfiles/file/nivejenimimanub.pdfIn PDF document text
- http://filatelianumismaticaumbra.it/userfiles/file/gunusadirud.pdfIn PDF document text
- http://pixel-pro.ru/upload/file/60985010434.pdfIn PDF document text
- https://jjcfurnituremaker.com/userfiles/files/paludavej.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3fc4d6b03---ginajiwak.pdfIn PDF document text
- https://tiemhoahaibara.com/data/dulieu/files/ketazerumajakotibozixeka.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/50861522002.pdfIn PDF document text
- http://to-tuong.com/media/ckfinder/files/60285209125.pdfIn PDF document text
- http://28777886.com/Lpf/UPFILE/userfiles/files/molapipuxevixi.pdfIn PDF document text
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/309074689b6696df86097a05f01bbb0e/26964325308.pdfIn PDF document text
- https://rockyshairsalon.com/wp-content/plugins/super-forms/uploads/php/files/0250enpbo0c3t12bh426l4gm30/80300724376.pdfIn PDF document text
- https://aristi-trap.com/upload/users/files/99461694835.pdfIn PDF document text
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/feviguvak.pdfIn PDF document text
- https://artedeeducar.com.br/ckfinder/userfiles/files/87336716981.pdfIn PDF document text
- https://hitpoint.tw/userfiles/file/1046988023.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a79e000793b---wexobuno.pdfIn PDF document text
- https://caribemed.com/userfiles/file/ridiz.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/gnb7qeg25e37pi79g2umi3moi5/29226360483.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096275bb7f99---rumekivenunijimibuguw.pdfIn PDF document text
- http://ccymgr.com/clients/a/ab/abc9983c1712fd324c9320bcfcf975a8/File/lewelexo.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/kunana.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0bed69cd00---bewazanofew.pdfIn PDF document text
- https://2acontractor.it/images/file/58606507503.pdfIn PDF document text
- http://decamiones.com/userfiles/file/85980423136.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_off0000c3a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dbc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC0 | 11408 bytes |
SHA-256: dd1a7664fc79a3a0924c9b7f6ef9c4a08ac36d1991d2e442f4a9e5d577c17e48 |
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font_02_sfnt_off0000f60b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60B | 16352 bytes |
SHA-256: 4291639a60655b3b6109b7d551ef1cd2d8c4b4add01ece61c36cb707ef1ce233 |
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