MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites hosting additional PDF files. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using these sites to distribute further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e91577ad368---momisasunuxola.pdf In PDF document text
- https://e-ceramika.pl/userfiles/file/7960238420.pdfIn PDF document text
- http://lamachine.nl/userfiles/file/zenelonuregofubupukiwij.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/84364ec49c998f0e3c32ab9e348eee61/78899848175.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/ffe4af78a64f64683c916d885a82c399/letavalavagasowubixete.pdfIn PDF document text
- http://pamatudarbai.lt/ckfinder/userfiles/files/16010336444.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/nebesipik.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a60ecaf16cd---kixosufe.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160dee784cde9c---bapewoboropukuzupodiru.pdfIn PDF document text
- http://stylekd.ru/files/65223118450.pdfIn PDF document text
- http://lhs75aa.org/clients/0/08/08eb77d093c5251d787cf05842b4a73c/File/vezuvut.pdfIn PDF document text
- https://tsafar.ir/basefile/tsafarir/files/zomowewubo.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/t70q9pkhb4cn6kcphm76gif6fo/pulufutimepojul.pdfIn PDF document text
- http://fygl.net/uploads/file/310255283169.pdfIn PDF document text
- https://zlato-eu.cz/upload/files/87973562581.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8abf2f225---vobababelipitexogobaf.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611491bb35d40---76084501715.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/et5e97op2kevpnqu5hvq287295/4817596701.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfd092f113---ketufodemewobofix.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b803819f093---fadofiga.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b1d86c080---433079779.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/virigokifubagepikufubizo.pdfIn PDF document text
- https://muratay.nl/userfiles/file/92581201883.pdfIn PDF document text
- http://mankatomnclassof71.com/clients/e/e0/e0e8961458839910853a12af65841b27/File/nejariliw.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=focus+on+ielts+sue+o%27connell+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_off0000bf3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF3E | 17216 bytes |
SHA-256: e4de3b3e04e2233d0e951ba014c3e6497ac2c2a24b0c2f77cce60c2dc30fe108 |
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font_01_sfnt_off0000ec00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC00 | 10464 bytes |
SHA-256: 88604bdc6e770e49192c0afdd900a0d9d83d513a80f02e1a4b42a60778217b7a |
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font_02_sfnt_off000103e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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