MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://krisoc.ru/uplcv?utm_term=to+the+end+of+the+road+song PDF link annotation
- https://digireg.com/upload/58217172499.pdfIn PDF document text
- https://stonebuild.bg/f/uploads/files/lamula.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161508201b5e82---92435476598.pdfIn PDF document text
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/sunazej.pdfIn PDF document text
- http://wdnederland.nl/file/kadanuranasidipa.pdfIn PDF document text
- https://larioenergy.net/uploads/file/gexoxegokazemovebenazaxud.pdfIn PDF document text
- http://winhazel.com/indigo/ckfinder/userfiles/files/45620618999.pdfIn PDF document text
- http://ordinate-ltd.com/file_media/file_image/file/giseluruv.pdfIn PDF document text
- https://novsport.com/content/File/62250854199.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109012327228344.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/90071769929.pdfIn PDF document text
- https://klubkanine.com/home/klub/public_html/ckfinder/userfiles/files/popijapewamifakijotati.pdfIn PDF document text
- http://divyabodhanam.org/userfiles/file/jifomedoripogofolezulexib.pdfIn PDF document text
- http://bsbcarpet.com/userfiles/file/44410581353.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156f2c159019---fedakinufogupekiwoz.pdfIn PDF document text
- http://contua.org/userfiles/file/76010474835.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/3739400225.pdfIn PDF document text
- http://jumpinfit.it/userfiles/files/lesuluzojogawidemeb.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f7bfa8b72---87172251145.pdfIn PDF document text
- http://dbexpertise.fr/catalogue_dynamique/file/merorusirulobojowaj.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161409c1757544---19183411784.pdfIn PDF document text
- https://megacook.pt/site/upload/file/54082200891.pdfIn PDF document text
- http://parikshitconstruction.com/uploads/60530325079.pdfIn 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://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_off0000f53d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF53D | 20072 bytes |
SHA-256: cf883496baa937a486c0251877e99c5f1c958e174d4543e5b5d5f91087f7f80b |
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font_01_sfnt_off00012918.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12918 | 10460 bytes |
SHA-256: 1c3ba36f9d087209d11e0ee8ca8eda73d3585c706d381b680e37b99d2b343052 |
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font_02_sfnt_off00014093.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14093 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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