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 pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The file's structure and URL patterns are consistent with a malicious PDF used as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://synerhu.ru/uplcv?utm_term=happiest+season+sub+espa%C3%B1ol+online PDF link annotation
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/27649593497.pdfIn PDF document text
- http://chinahongji.com/d/files/gilavutoxelozowopon.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/dajujap.pdfIn PDF document text
- http://cuahuyhoang.com/media/ftp/file/vogososizipebag.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613871ea826d2---38471031378.pdfIn PDF document text
- http://mybed.tw/uploads/files/202109090553168109.pdfIn PDF document text
- http://mcap.cz/images/uploadedimages/file/16010008956.pdfIn PDF document text
- http://oprandi.it/userfiles/files/kaguwajiwatomegejarol.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/738e93b2fa14bdde24014a89b3c969c8/kubanomu.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161312101d28d1---savelajonu.pdfIn PDF document text
- https://ferdavagnar.is/images/fck/file/rodiga.pdfIn PDF document text
- http://pentas.eu/userfiles/file/8711750436.pdfIn PDF document text
- http://theorientgarden.iorderfoods.com/uploads/files/56227569971.pdfIn PDF document text
- https://atasuorganiktarim.com/upload/ckfinder/files/51020362195.pdfIn PDF document text
- http://www.workbythai.com/admin/assets/images/36136081416.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/xoxajagasapoxe.pdfIn PDF document text
- http://www.saletime.gr/admin/fckfiles/file/85894290570.pdfIn PDF document text
- http://mitroc.com/userfiles/file/20355723697.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed913cf5e1---68994489824.pdfIn PDF document text
- https://bhsbeacon.com/FCKeditor/file/79610961068.pdfIn PDF document text
- http://industra.sk/userfiles/file/93215578594.pdfIn PDF document text
- http://i-harmonics.com/upload/files/71919194259.pdfIn PDF document text
- https://producto.works/userfiles/file/65933770347.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_off0000d7f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F1 | 19008 bytes |
SHA-256: 377fc49d6ef1358034cb4c4e22ee0827b24e500910b0e5da730f82bdb7d4b667 |
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font_01_sfnt_off000109f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109F0 | 10580 bytes |
SHA-256: 337f48cb2e9bdde6c0cd0dab5e7a752663e13c8840a0139b83b8358614819061 |
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font_02_sfnt_off000121b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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