MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. The embedded URLs, such as http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/01f0a9c5daff7ed237322f6edfc96937/kovujozamozemikoful.pdf, are key indicators of this redirection behavior.
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 http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bebe4e00cdf---30624190312.pdf In PDF document text
- https://baongochoa.com/upload/file/zixosesujuvajejalasunax.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/01f0a9c5daff7ed237322f6edfc96937/kovujozamozemikoful.pdfIn PDF document text
- http://nhatngungoisaoxanh.com/upload/files/jixote.pdfIn PDF document text
- http://cu-hinothai.com/ckfinder/userfiles/files/funukevajefosazetejag.pdfIn PDF document text
- http://sibservis.com/ckfinder/userfiles/files/60540910540.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/73ac83e55cf7649486cbaa8a6f638a1e/duliwopepagusedurameweg.pdfIn PDF document text
- http://wittzumstegfamilyreunion.com/clients/e/e5/e56c03c63d8c9260b12fda9e5e6a3df6/File/jowasuvuzadivelof.pdfIn PDF document text
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/92074559367.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/vowefefemapugutavalijivo.pdfIn PDF document text
- http://ahdongjiu.com/upload_fck/file/2021-5-3/20210503141911995396.pdfIn PDF document text
- http://fontanarosaserigrafia.it/userfiles/file/pojipo.pdfIn PDF document text
- http://tolaniprojects.com/userfiles/file/zesananofasikez.pdfIn PDF document text
- http://hcvitamin.com/webroot/img/files/bopere.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9862bd2bc4---73543078085.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/butevud.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/ppuv9a2m8i2vcmlb9qf9ckg3mv/20709331119.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c44a23034e1---85389546527.pdfIn PDF document text
- http://icbiz.ru/userfiles/file/zekumoxifiwelovowofedewuv.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/ucnl3snbjq6cng88ar7uo74i9t/89953755082.pdfIn PDF document text
- http://mariamozharova.ru/uploads/files/zejinidurovifemebexowod.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/16088b8f3f1b16---bilazimafitaz.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/majebub.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/0dolupdepo6hmkfd4q6cmm045q/84902934681.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/13768572327.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=recetario+saludable+para+comedores+comunitarios+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_off0000e121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE121 | 20048 bytes |
SHA-256: ff1e719853d428d888ffbf1d45bcc5ca3406b2f3647411a0a5183f694396d047 |
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font_01_sfnt_off00011357.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11357 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B6E | 11064 bytes |
SHA-256: 6224583fa3ee82c5f780b067192d69d7a746b6447cf802402eba35963022a5ae |
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