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://pixomot.ru/uplcv?utm_term=toad+for+oracle+freeware+64+bit+download PDF link annotation
- http://skomi.ru/img/files/file/85625168518.pdfIn PDF document text
- http://skrabl.pl/www/rpbd/fck/file/sugapidajon.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/d4db4fe62323ea114afa1782d7f3d997/rubufuzigamosoxozewaviv.pdfIn PDF document text
- http://master-sign.ru/ckfinder/userfiles/files/muxubaba.pdfIn PDF document text
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160719eeb38812---20142160502.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c50b22ef4e1---68213534724.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/44802878076.pdfIn PDF document text
- https://agentcctv.com/userfiles/file/nekidexivozejow.pdfIn PDF document text
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075cc85ed722---kixodukej.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/63102091475.pdfIn PDF document text
- http://victoryelectricalsupply.com/ckfinder/userfiles/files/88931958941.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/lfg3q1gf603pacvaqag7nub9n4/ramabexumibi.pdfIn PDF document text
- http://pwr-tech.ru/userfiles/file/14202847435.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7729e6019---11124076587.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/be3c54983ffaf1f0488ee90dbbc6363d/78248801355.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
- 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_off0000f618.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF618 | 5260 bytes |
SHA-256: ab4001f2726b1054a48dd03d6e1d78e03fbb2d41e2128f12fcfbd11ecd4fbeb5 |
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font_01_sfnt_off00010823.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10823 | 11044 bytes |
SHA-256: 7fd0473804c7bfa38584023d077e1fddc9d5a2f2f95d97bdbb05886c62f17f79 |
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font_02_sfnt_off00012dfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DFD | 18440 bytes |
SHA-256: 64cd8c714ab5296fdb070433fc5a4fbc5eed7a5287b40daab0e6c55565231a56 |
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