MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with many URLs pointing to external resources, some hosted on compromised CMS upload directories. This suggests the PDF is likely a lure to redirect users to malicious sites, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/301ac212795351ce8523f820f89be6b8/81903175826.pdf In PDF document text
- http://hamdard.com/hamdard/app/webroot/img/ckfinder/userfiles/files/16922816551.pdfIn PDF document text
- http://elementsgogreen.com/userfiles/file/kafidofep.pdfIn PDF document text
- https://robert-zauer.cz/userfiles/file/84639047167.pdfIn PDF document text
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/65858545974.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/c437e7f4fb1d15cf2436a5ad9d120340/9492742964.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa015e74f8---ligevirajaratuxefepopov.pdfIn PDF document text
- http://firmykominkowe.pl/Obrazki/edytor/file/fawuduri.pdfIn PDF document text
- https://jagominum.com/contents//files/54271823658.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/67993914415.pdfIn PDF document text
- http://divorce-difficile.fr/userfiles/file/rolomadunivupedogujuve.pdfIn PDF document text
- https://rsun.pro/admin/ckfinder/userfiles/files/96876208207.pdfIn PDF document text
- http://smclassof57.org/clients/34860/File/95421571385.pdfIn PDF document text
- https://damiel.eu/userfiles/file/9748271640.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d49af29982---55593701148.pdfIn PDF document text
- https://area5srl.it/file/pisuduxadopu.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/e938fd6e495a874b7bdd1f66ba897e2e/puterefadavora.pdfIn PDF document text
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zenegiwo.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/afc663f32dfa55192f2bb54da1594d2f/51400764218.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088b228bad84---56030165018.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/75315885261.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16091f29fbc684---87057649650.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160715926eba45---7189294508.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=building+materials+and+construction+by+sk+duggal+pdfPDF 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_off0000f5dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DC | 17892 bytes |
SHA-256: 55e8783f77adc25e6b65f674800488d8f1d9fd67d0110ab37cb916120fdb3d20 |
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font_01_sfnt_off000124ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013ce5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CE5 | 11464 bytes |
SHA-256: 7a8c0b027ce2e2255715b06df084e814e406a0eebee0e0a80c94ec0a652385a0 |
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