MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with several URLs pointing to compromised CMS upload directories, suggesting an attempt to lure users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the overall structure and URL analysis point to a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.stock2morrow.com/ckfinder/userfiles/files/93369064411.pdf In PDF document text
- https://akvaguru.hu/user/file/54675953249.pdfIn PDF document text
- http://debandhelder.nl/ckfinder/userfiles/files/50402890844.pdfIn PDF document text
- http://xpeedon.net/userfiles/file/20210906184843.pdfIn PDF document text
- http://interwork.sk/userfiles/file/vopilezaboxobugutokij.pdfIn PDF document text
- http://hodoan.net/userfiles/file/pogetip.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e78540c48---33216978973.pdfIn PDF document text
- http://ketphatthinh.vn/upload/files/99194440950.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16132602a74e01---durafazebar.pdfIn PDF document text
- http://factorycontrolprojects.com/userfiles/file/wotizukugitubiletiwugifo.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132dddedc6c8---73997104677.pdfIn PDF document text
- http://www.halpellet.hu/userfiles/files/rupozujowimexuxogano.pdfIn PDF document text
- https://ferropula.hr/files/46389340534.pdfIn PDF document text
- http://alteredcompta.com/buddha/ckfinder/userfiles/files/64627741874.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/2c529a52fbe6cb6c09eb273eb7ca669b/samojumaputuv.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/gowubuzo.pdfIn PDF document text
- http://nhatrangpalacehotel.com/app/webroot/upload/files/rigitabanijagapumitatobug.pdfIn PDF document text
- https://ost-fogging.com/upload/files/ferifulagu.pdfIn PDF document text
- https://cabsfromheathrow.com/userfiles/file/72781831789.pdfIn PDF document text
- http://casms.org/atts/news-files/file/50090541927.pdfIn PDF document text
- http://www.santamyoga.be/images/file/sokegunemujisexuxonepuwed.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/ruriweseladakekuzojonodev.pdfIn PDF document text
- https://agronlogistics.com/userfiles/files/sumofevisisizeremedaro.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16139dea2dbc13---liderajiluminu.pdfIn PDF document text
- https://mytalk7.com/_UploadFile/Images/file/rutejuzibogekikiwa.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=configurar+apn+claro+uruguayPDF 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_off0000d5b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5B1 | 10500 bytes |
SHA-256: d188316e248be06441c23874de1f1bbfe7e9e92897d84574dc1d876e0b9bcd95 |
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font_01_sfnt_off0000edb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB7 | 18836 bytes |
SHA-256: 8317a79447a2967c52f08ab87af841c489a38f89de695a457334227415774dd8 |
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font_02_sfnt_off00011e4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E4B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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