MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of links, many pointing to compromised WordPress sites, indicating it functions as a link farm. The presence of 'utm_term' parameters suggests an attempt to track user engagement, common in phishing or scam campaigns. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://irlanc.ru/uplcv?utm_term=los+doce+pares+craneales+pdf PDF link annotation
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16071f056c57b1---6168467605.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1b05efcfe---zozemimosakodob.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/wipatozemolufisa.pdfIn PDF document text
- http://rzn-house.ru/upload/file/puxakumajukita.pdfIn PDF document text
- http://mikomisushi.com/uploads/files/91031420126.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a6ecab3ea---gifubojuximebuneverixufo.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d430d027f6---jevegaselebiji.pdfIn PDF document text
- http://universalgroupautos.com/files/others/sebolumijeporobupid.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1611a34388f994---sabagamiva.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1bf1daa80e---ruzarax.pdfIn PDF document text
- http://falerisztika.hu/tmp/rexajamimomilebulore.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210611/file/makesekuderekonavexule.pdfIn PDF document text
- http://anoh.net/pds/userfiles/files/pesopenit.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/edacefd12ec577b248d868ae7c2f5af4/munazavavulageludalebo.pdfIn PDF document text
- http://applexin.com/ttpsea/files/file/muwuxad.pdfIn PDF document text
- https://mytopics.it/uploads/file/38584408872.pdfIn PDF document text
- https://advik.net/userfiles/file/46404998791.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985902d58cf.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_off0000d7f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F7 | 10380 bytes |
SHA-256: f916bf5ede2bab87bfd85940cb6c4c44ae73b59e35b2a61e926d74a463470882 |
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font_01_sfnt_off0000ef88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF88 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001079a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079A | 19432 bytes |
SHA-256: ac6a70cd00c46216500f52c6a4bb7c33e75e32540780df6632e9ee75520f622f |
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