MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 6
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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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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://catamma.ru/uplcv?utm_term=lines+composed+a+few+miles PDF link annotation
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16096bd59bfd56---xolofemur.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/76e880baa875a1d069c0ea3e71783369/85992207864.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/3f861be63b340fc405d953cd69fde788/pobabokurutej.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/c3634713f4696566b5ada2d1a5416c70/64868015275.pdfIn PDF document text
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/cdf677f096400e84c2a860f4be9d1fa4/velosuxibefazenolatobuba.pdfIn PDF document text
- https://samngaimarble.com/html_upload/file/76693736313.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d985f6fc14---zibon.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/97840392302.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/38ohrp9dtpsklj94jhtqabqpk4/jegaxasujoparebe.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aa762e3c00f---85128043573.pdfIn PDF document text
- http://beiks.info/public/file/36840547500.pdfIn PDF document text
- http://faurerom.com/userfiles/file/tenozuxetebavawupexej.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/kovisatemesatibibenurut.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608155aff1c30---57278400077.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/415f3ad3b904707d04d8a59920b37668/xubebiwojeburitugavef.pdfIn PDF document text
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/d32e47d61ab2310faf26e3c4bdc8e130/90263432463.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A1 | 5236 bytes |
SHA-256: 552eda6a81d8c59143c3c0fefdfec7275837c01874e3a4d7111dd1df98fa1b6e |
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font_01_sfnt_off0000f47b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF47B | 10588 bytes |
SHA-256: a5b19fc9274473504b7ffce60d5a0919ad6268ba406bbd1afb724ca406318f2b |
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