MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified numerous links pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs further supports the attack pattern of directing users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://smidgel.ru/uplcv?utm_term=id+for+horde+beacon PDF link annotation
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ced80ceb97---rexezumifafipukevijafus.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/jatofamemuwuwebab.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/sunitifepemizox.pdfIn PDF document text
- https://brincandoeaprendendo.com/fotosempresa/files/76453557215.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/17452681944.pdfIn PDF document text
- http://sloplast.com/userfiles/files/vodan.pdfIn PDF document text
- http://cs-golfclub.com/ckupload/files/26653408665.pdfIn PDF document text
- http://printrun.nl/userfiles/files/sujuroj.pdfIn PDF document text
- https://oriolefashion.com/ckfinder/userfiles/files/72431293550.pdfIn PDF document text
- http://fluorescent-training.com/file/88664083119.pdfIn PDF document text
- https://textosolutionslinguistiques.com/upload/editor/file/42650738633.pdfIn PDF document text
- http://annamsaigonlaw.com/upload/files/32548539645.pdfIn PDF document text
- http://rund-sro.cz/UserFiles/File/sokerikibir.pdfIn PDF document text
- https://quizai.com/uploads/files/62481361303.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/161538d54126e8---77500063453.pdfIn PDF document text
- https://dcmheavyequipment.com/admin/images/file/86333413439.pdfIn PDF document text
- http://linpus.com/app/webroot/userfiles/files/vopeforejepajapofonop.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/67151229882.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/bikp4ebhbhanr3o8h1n382r3aa/vofepidakaxoloxu.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135320479320---xavumove.pdfIn PDF document text
- http://teplospectr.ru/images/files/31214865171.pdfIn PDF document text
- http://herborgthailand.com/file_media/file_image/file/62332001506.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_off0000ea3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA3E | 10260 bytes |
SHA-256: f0df9d81ad5bb18279f02680595590739564824a5ff09d38e7e22dfa4a412cb9 |
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font_01_sfnt_off00010128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10128 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001193a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1193A | 19216 bytes |
SHA-256: ed3219c2649bdbb9fe5828778f32ad9ab2a32330a80f520d6b273dc1e81213c1 |
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