MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some of which are hosted on potentially compromised or disposable domains. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports this assessment.
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://inverpalmas.com/aym_image/files/basuwisowawedololakiraga.pdf In PDF document text
- http://civicwomen.com/ckfiles/files/19063175551.pdfIn PDF document text
- http://www.pics4us.de/userfiles/file/22798562465.pdfIn PDF document text
- http://webminmax.com/userfiles/file/41416986707.pdfIn PDF document text
- http://psycare-spb.com/userfiles/file/xomuwutarasifuno.pdfIn PDF document text
- http://sevoir.hu/uploads/file/bifonodafaluwiwovora.pdfIn PDF document text
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/2240501.pdfIn PDF document text
- https://nhahangthanghuong.com/uploads/files/86510489179.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161312aa97c8b6---zepuruzebenabitugibada.pdfIn PDF document text
- http://eubeer.vn/uploads/files/tawavuzikunupozedepimebot.pdfIn PDF document text
- http://slovoveri.org/userfiles/mobapaleveweparawewodas.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613424a506348---dikifoxanenenatonopopulu.pdfIn PDF document text
- http://peter-scherer.de/userfiles/file/28181624555.pdfIn PDF document text
- http://druckmaschinenservice.com/uploads/fce/files/54824839162.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/14466187170.pdfIn PDF document text
- http://indyskischool.com/ckfinder/userfiles/files/belima.pdfIn PDF document text
- http://i-daa-wl.de/userfiles/49452003901.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/648f4dpqr8jgsace8sqrvo8hjm/94355759945.pdfIn PDF document text
- http://ibnuaffan.com/ckfinder/userfiles/files/pogogumarixuwurekupo.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/f72b3274bf937f7a783921a6ccf7eef9/wabutezuzi.pdfIn PDF document text
- https://www.peltonfell.org.uk/ckfinder/userfiles/files/berojo.pdfIn PDF document text
- https://exihomes.com/userfiles/files/28642291397.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+increase+internal+storage+on+android+phonePDF 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_off0000e90e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE90E | 10872 bytes |
SHA-256: f9254ed51f1246db81008dbe81124d2e11dbe8f2a24346e479d61e458bec529a |
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font_01_sfnt_off000101e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119F8 | 17620 bytes |
SHA-256: 744ffc7ae103b77a14160846a311644c8a18f1032de6bb958d214d907415566f |
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