MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and is identified as a link farm hosted on disposable or compromised domains, suggesting a phishing or malware distribution scheme. The embedded JavaScript stream further supports malicious activity, likely used to redirect users or execute further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=what%27s+a+euphemism PDF link annotation
- http://badgerhillfarm.uk/69451512133.pdfIn PDF document text
- https://jagamimpi.com/contents/files/77600129796.pdfIn PDF document text
- http://shopcloud.cloud/ckfinder/userfiles/files/24377498.pdfIn PDF document text
- http://asupuro.com/user_data/image/file/62946014252.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/9ff41khv0sraa074k05am806sa/65724525708.pdfIn PDF document text
- http://langfordfinancialservices.com/userfiles/files/3752981817.pdfIn PDF document text
- http://bekescsaba.varosom.hu/userfiles/files/notugigogalapuga.pdfIn PDF document text
- http://phone-server.com/userfiles/file/fawororit.pdfIn PDF document text
- http://homesunshinepharma.com/upload/files/69822767608.pdfIn PDF document text
- http://ecole-belair.com/ecole/file/82578230722.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/619650b0df797094717e30d4d826530c/25806268024.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/bubureboduru.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/948aad0605f29b9060f2fc0c48e33770/81828991143.pdfIn PDF document text
- https://xlspandoek.nl/userfiles/file/23259260820.pdfIn PDF document text
- http://theonejsc.com/userfiles/file/najokarozuxafozaxefu.pdfIn PDF document text
- https://hotnews.md/upload/userfiles/files/37937504559.pdfIn PDF document text
- https://warungmimpishio2.com/contents/files/12671872984.pdfIn PDF document text
- https://pernambucoimortal.com/imagens/files/54351004928.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/51157977777.pdfIn PDF document text
- http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/6925615258.pdfIn PDF document text
- http://conservativista.com/js/ckfinder/userfiles/files/lowewelo.pdfIn PDF document text
- http://ibshop.gr/uploads/_uploads/files/nujezalivovotoj.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_off0000bdca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d5dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5DC | 17424 bytes |
SHA-256: 7ba1000c3f1c2b48713934e0e09094e4022f558335a2eda1dcd772ae772ace58 |
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font_02_sfnt_off00010289.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10289 | 10272 bytes |
SHA-256: 918701fc38d755b8de1a09c1885e3b9dbe1ecb3266be81300915bd6fbde7b0ab |
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