MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file, likely used for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://medvor.ru/uplcv?utm_term=free+spy+software+for+android+phone PDF link annotation
- http://worldsocialistpartyindia.org/ckfinder/userfiles/files/27469491858.pdfIn PDF document text
- http://studiocinti.eu/userfiles/files/gelidukisisopor.pdfIn PDF document text
- https://mariellatriolo.it/public/file/10633310911.pdfIn PDF document text
- https://akamercedes.com/images/uploads/files/11009650288.pdfIn PDF document text
- http://www.enredmail.com/templates/files/idCliente_/file/tokugemazabubatikinima.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/71251507021.pdfIn PDF document text
- http://knx-shop.ru/admin/ckfinder/userfiles/files/73858646167.pdfIn PDF document text
- http://gsnursing.in/ckeditor/ckfinder/userfiles/files/87579588288.pdfIn PDF document text
- http://regmac.net/userfiles/files/43843287326.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-21/20210921141958391720.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614261521b633---44037569315.pdfIn PDF document text
- http://schturman.ru/files/files/geniloxutav.pdfIn PDF document text
- http://cesishotel.com/res/wysiwyg/file/lebivesokasapowolezila.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140aebe387af---leruje.pdfIn PDF document text
- https://chanty.dacola.com/upload/files/dokorazazelo.pdfIn PDF document text
- http://xn--90aatbabxd8ae1kf.xn--p1ai/files/59293787292.pdfIn PDF document text
- https://manorhair.com/uploads/files/202109211606092565.pdfIn PDF document text
- http://qdxqw.com/uploadfile/file/85380355789.pdfIn PDF document text
- http://skyrybupaslaugos.lt/uploads/files/4338343678.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143a5cf604f5---ledifiboz.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/vuzepopudes.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_off0000ac83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c49a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC49A | 10724 bytes |
SHA-256: 786bfe66f23d76d6e9c7e5c8de24f48bc5f1459a05413bbe8e7138ce1fa947e3 |
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font_02_sfnt_off0000dd40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD40 | 14628 bytes |
SHA-256: e1d257fd37c4b0fedcd01d66a94989ab8abad41fb3a19f8d25cfe1bb0b9ed147 |
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