MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URLs, many hosted on compromised websites, suggesting it functions as a link farm to distribute phishing or malware. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating a tactic to obscure the true destination or leverage compromised infrastructure. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or malware delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://medvor.ru/uplcv?utm_term=significado+de+aprendizaje+visual+pdf PDF link annotation
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/tcsngj37jvd9ti2h04i6gcfgj3/1947676893.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/00c45f76b39292b7f7c122caa33bae93/gewejujigebanatomutirize.pdfIn PDF document text
- http://umffz21.ru/admin/ckfinder/userfiles/files/45606888457.pdfIn PDF document text
- http://girisimcilikproje.com/resimler/files/59021551377.pdfIn PDF document text
- http://uniquestatues.com/clients/9/91/91c6e204ee4529d3b478b0717040545d/File/3520490172.pdfIn PDF document text
- http://ssaisarang.com/ckfinder/userfiles/files/72337529883.pdfIn PDF document text
- http://ecofincas.net/ckfinder/userfiles/files/2577801038.pdfIn PDF document text
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f37c07a08a---63695765616.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/l22i132nm74mjd0f2k0cmkd2kf/jusejas.pdfIn PDF document text
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/9392c36bd4eec963a1507817346073c6/8263546787.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c61791e3e79---31941746689.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acda49b131c---10339292082.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/u6fuj1lt589eda45jh2cmng707/4492363845.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8fa7984b2---3392094136.pdfIn PDF document text
- http://avs-market.ru/admin/ckfinder/userfiles/files/39991819054.pdfIn PDF document text
- https://dgaspcsm.ro/ckfinder/userfiles/files/mawufagukodizobavolu.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f08294f22---95353387301.pdfIn PDF document text
- https://frigosztufi.ro/ckfinder/userfiles/files/96754194622.pdfIn PDF document text
- http://kondicionery-vidnoe.ru/upload_picture/file/11052137843.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/gonemusi.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609eefdec53f2---pefapobuxakos.pdfIn PDF document text
- http://tizianaiberti.it/userfiles/files/55300190622.pdfIn PDF document text
- http://ottotech.center/userfiles/file/gumedapimugiv.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/tinedodepefajowax.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_off0000e9ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000101be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101BE | 18608 bytes |
SHA-256: 4599a48b212e1381bcb36a4c88650980f139066119e10b16d40a4f8c8e0567e4 |
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font_02_sfnt_off00013124.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13124 | 11128 bytes |
SHA-256: 313a8599829dce84adec8a77e3e3b106fb9e6ca9823ccaf9e39b54bd2b300c35 |
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