MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users. Heuristics suggest this is a phishing or malicious PDF, and ClamAV detection confirms its malicious nature. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://serrechevalier-skifun.com/imagesfile/nidogurefez.pdf In PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-9-18/20210918041502358629.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/87449041144.pdfIn PDF document text
- http://thrifty-uy.com/files/others/54372712788.pdfIn PDF document text
- http://senseoftourism.dk/userfiles/file/lovedolalaxazexo.pdfIn PDF document text
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/45450072303.pdfIn PDF document text
- http://rockefellersgold.hu/editor_up/21652349623.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/mepowijo.pdfIn PDF document text
- http://jpsacademy.com/slbdavbatala/userfiles/file/bedekujimojow.pdfIn PDF document text
- https://interstudy.net/userfiles/file/31883220213.pdfIn PDF document text
- http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/8925954523.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/e6df4596492d2b287c6674f41c66e720/10283041250.pdfIn PDF document text
- http://seidels-mineralienwelt.de/images/uploaded/file/21969843418.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146d4b555abc---banavefedoror.pdfIn PDF document text
- https://pensiuneaselina.ro/userfiles/file/gutiliduwozilovebevofabib.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/f7e8dc21bc98948f78392ab55bd50294/72387380475.pdfIn PDF document text
- http://salman-is.com/userfiles/file/magirelekadefima.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/mbva1bknvo754dvr9f0i74jdu4/1171461126.pdfIn PDF document text
- https://global-product.org/CKEdit/upload/files/pafirik.pdfIn PDF document text
- http://yucehukuk.com/resimler/files/gazexevito.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/3805273174.pdfIn PDF document text
- http://krcatikyonetimi.com/userfiles/file/36260753428.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372b3e9420c---54765957333.pdfIn PDF document text
- http://kalkulacka-hypo.cz/userfiles/files/mixev.pdfIn PDF document text
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/51789766658.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=dragon+ball+z+episode+189PDF 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_off0000bb37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB37 | 20024 bytes |
SHA-256: 8c7882607f5365838a52270ee3926383e0c2dd99d4226ba64a24d750466d4b24 |
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font_01_sfnt_off0000ef64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF64 | 11096 bytes |
SHA-256: 7f5fdbfc687e30af85d4b68cacf4793ba3732303b61f86dd06dba72b9fb97671 |
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font_02_sfnt_off000108f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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