MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=happy+birthday+mahnoor+cake+images PDF link annotation
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b86de34239d---vududugegefarisakaladibo.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/9d0f6c77157e4875c33565bff99692b7/11586185841.pdfIn PDF document text
- https://gbagencement.fr/uploads/file/7754597691.pdfIn PDF document text
- http://tfh-filter.hu/_user/file/71121760904.pdfIn PDF document text
- http://ifa-astrologie.de/userfiles/file/99038585219.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/1be25d1a65007e160873b90d6e8147e0/rumiwulevakixase.pdfIn PDF document text
- https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/214f5148f206dcc01b829a2bbbc76d6c/xepatigasigidow.pdfIn PDF document text
- http://keralabiblesociety.com/fck_uploads/file/15137883523.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/kadonodonuvojixefutuxi.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab9991d353---wupajobimesosekinuzawivun.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/fqpqe6tim2hqaar8a33o8v6p4c/49610359035.pdfIn PDF document text
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/5hbkl3cncu4gf7ojva0njl4sni/14683339139.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b7a76cdd7---26822415692.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/28345496052.pdfIn PDF document text
- http://logiccpacma.com/ckfinder/userfiles/files/19154113361.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000125fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125FE | 7168 bytes |
SHA-256: 5b5a850d76810efdc4c1effbb510f475b1bccfa24bd07b948f9971b5aaa7b77a |
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font_01_sfnt_off00013d9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D9C | 5724 bytes |
SHA-256: 750a3d0f98ce114957a72eeeb4c49467d332f526463964e76c04a7511548cdfb |
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font_02_sfnt_off000150e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150E5 | 16652 bytes |
SHA-256: 278495fdb110825e3e73dac769e2ee4504f5dcf5cd08ef3d71426ebd9e199aa5 |
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