MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to potentially malicious or compromised websites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure and URL distribution are indicative of a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://etre-belle.su/images/file/91940434872.pdf In PDF document text
- http://fitviewer.de/files/file/kejetid.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612094951099e---7878661832.pdfIn PDF document text
- https://wemservice.com/ckfinder/userfiles/files/wobovawokarewovomomuwij.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/a744a75878fb5d5024ee58d633ffab57/13947811774.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7995c92a8b---34950296257.pdfIn PDF document text
- https://lamaisonducoeur.ca/upload/editor/file/lutipegegalanasone.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/83904333923.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/bc4c0c95cbd9ad036347e031a99b0036/tiroza.pdfIn PDF document text
- https://ever-progress.com/upload/files/jifudipalalado.pdfIn PDF document text
- https://wonkingchina.com/d/files/54399618716.pdfIn PDF document text
- http://tfh-filter.hu/_user/file/zibenunazaj.pdfIn PDF document text
- http://1-champagne.com/blog_images/blog_/file/gupukuzedabigazesa.pdfIn PDF document text
- http://bahtiyardishekimi.com/fckfiles/file/vaxunasekujixopafam.pdfIn PDF document text
- https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/73528899973.pdfIn PDF document text
- https://arerp.kr/data/file///40789580051.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607da5a82a847---sugafifefukeparub.pdfIn PDF document text
- https://skyzoan.com/cake/beta/userfiles/file/16226053798.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d439721887---misif.pdfIn PDF document text
- https://xigmatek.com/upload/files/zalegu.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/lgp35qks0mmqp9upj4l8mnfacs/jikonivunu.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/nuxuvabujonevana.pdfIn PDF document text
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/5dd3dc1872d4a89bffdaafeb66dbf390/10167702231.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=solving+system+of+equations+in+three+variables+worksheetPDF 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_off0000e360.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE360 | 18248 bytes |
SHA-256: 02c40701bd75f7312b0e77d54014b58829c26a1c7e3d37592d1f73774458b6fd |
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font_01_sfnt_off00011344.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11344 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B5B | 11480 bytes |
SHA-256: addab1dca442caf18caf634808b5331884e3f2cc77fa89b89c85eedbd6cfee21 |
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