MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to host malicious content. The presence of a 'download button' heuristic and the ClamAV detection as 'Pdf.Phishing.Trojan' indicate a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and link farm behavior are indicative of a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c0631ea1a54---fagevokadowidexod.pdf In PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea066826d0---petefetiwu.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/34164e351faa9fdc81fcd9badb49db2e/53214982816.pdfIn PDF document text
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089326d3eeb1---47651510372.pdfIn PDF document text
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/sdetulqbgrv8usbpj6673tjun1/45816741754.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/d11cee563526ff643ab2476375df452e/taxunasidonajesu.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/8b5bdeaa5afd06245d28f7acb6e13722/somomelik.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/59473253211.pdfIn PDF document text
- http://atol-res.pl/uploads/file/23233767980.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/90161369556.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/74202278870.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609732d413a1d---weverasiperolazagapuje.pdfIn PDF document text
- http://sakuragiramenandsushi.com/uploads/files/lejilefasezikuse.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160c08529d055e---55778195131.pdfIn PDF document text
- http://aldo-ins.com/userfiles/file/5745290740.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=instagram+blue+check+mark+copyPDF link annotation
- 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e03c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE03C | 5592 bytes |
SHA-256: da2f9fb2d5a46d53c2a5de7fcbbcac5376f40608a2e4d4790cf09fca1fa2e2b8 |
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font_01_sfnt_off0000f31f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31F | 11552 bytes |
SHA-256: 390c4d12c3a57469f7968e1950180f800568d56aae44615d919c738cf7061d54 |
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