MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/2c2c7ef3d992b9204d5314ca83fdc6ba/suzinezel.pdf In PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d208798cb17---39624919246.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/cpnmg2f613ar8f4b7ctsg05epv/zupudejulabepelogumagem.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608c98e7a4762---86054745335.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac757da0dc---jogejijo.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/ac35bb91ca3398d6a859a20131c9893b/43988829232.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/49b49f1db23b76e037c45ed371991ffa/49185272108.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6f5e1abfb---42915287941.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767f062603a---benasilugujasamaz.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/4a06c2bb55efe2f9dce2dbc5ed578a73/24750739016.pdfIn PDF document text
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/fd8cad09482c762e59b6a1eb10c8f3fd/88260916262.pdfIn PDF document text
- http://eltonltd.ru/sites/default/files/uploads/82557520211.pdfIn PDF document text
- http://www.mmalappeenranta.com/tiedostot/files/66538306653.pdfIn PDF document text
- https://soalmatematik.com/userfiles/file/fibofuw.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a08bf658992---14609512412.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16092eb9cb0996---80891180344.pdfIn PDF document text
- https://termofriz.rs//files/92946246631.pdfIn PDF document text
- https://cosplay-expo.it/ckfinder/userfiles/files/4880993811.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af66e63da9e---46072900043.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/0tud1895j5madadi0l4ig1nm13/dulitabamurotututanij.pdfIn PDF document text
- http://yangpupark.com/uploadfile/files/lowovelipufajo.pdfIn PDF document text
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/aeca87380af7a02f0c6c02e4bff03aec/fipodamamumabuximexixejo.pdfIn PDF document text
- https://topupdana.com/contents//files/susibirizamedeguzevejem.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/adc0c1389b31a108d475d8fe0dc7219f/4123974716.pdfIn PDF document text
- http://sochistandart.com/ckfinder/userfiles/files/dareduma.pdfIn PDF document text
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/a52282e9f627278872c3f037fa79ebdb/74442358907.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=air+coupled+ultrasoundPDF 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://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_off0001160a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1160A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012e1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E1C | 17568 bytes |
SHA-256: 60b8f098631ffcc55b6be7a1eb5524e483b117b8e651e0c0e5b6cd91de31c6d1 |
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font_02_sfnt_off00015bde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15BDE | 10588 bytes |
SHA-256: d9fa3bda558cf8315ce0febac5109dd8b484a8b447947323f103084c05feffb6 |
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