MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content or phishing lures. No scripts were extracted, but the PDF structure and URL patterns are consistent with phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://crysiq.ru/uplcv?utm_term=andy+griffith+show+mayberry+rfd PDF link annotation
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8a081fd6b---61521475264.pdfIn PDF document text
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160807a196c808---93161707640.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b8d2c6be7---tiwugid.pdfIn PDF document text
- https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8f7f08fb7---nopisujugasewilibo.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff8e6da11b---98742690883.pdfIn PDF document text
- http://hchs1972.com/clients/2/2c/2cb73362227bcfbd3ed6ae01b5b3dc46/File/zuperedosavopilaber.pdfIn PDF document text
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/2f2073b32ggnhtnh4e2thi9lqm/63151064570.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/3774eee5e1d3c7dddf83ac70dd6acbf2/43857760315.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160942eac8e53e---7885785701.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1aeea747c---99393621500.pdfIn PDF document text
- http://ctyrkolky-gamax.cz/data/dokumenty/13004949157.pdfIn PDF document text
- http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/25497109883.pdfIn PDF document text
- http://skyfestival.kr/ckfinder/userfiles/files/guvebimapumatem.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/5742cef819e867cb4e6c9a61474358b6/98397193741.pdfIn PDF document text
- http://mensagemcrista.com.br/ckfinder/userfiles/files/25100406607.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/t1411v4nblpkourqf5fbpuvik5/50581082928.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_off0000f991.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF991 | 11076 bytes |
SHA-256: a398e9eed93095b58d2926c0861b698edc067d7d40c54da25d6d0facc741cc1e |
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font_01_sfnt_off00011315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11315 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B27 | 17168 bytes |
SHA-256: f844bb391d1f332ac289cb31d75548f7befe642fc7959801ea9d25dc8aa83b0b |
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