MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to distribute malicious content. The presence of a PDF_RANDOM_URL_LINK heuristic further supports the distribution of malicious files via generated URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9700
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec3c4a7325---korivovojob.pdf In PDF document text
- https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/87031167370f8d697c3ce427c1a2adc0/98992393699.pdfIn PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/7af73503bfe9427ff8ae6b2ae638632a/tesesutituvemaxezufuk.pdfIn PDF document text
- https://signika.pl/Upload/file/tasixijas.pdfIn PDF document text
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecebaccdaf---sofopinigefog.pdfIn PDF document text
- http://www.adarshvidhyasankul.org/userfilesfile/rurulaverukokazige.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115bd3cc780d---zilamabubufiximevavug.pdfIn PDF document text
- https://studiovizia.com/webroot/img/content/files/5895643728.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/q9usah6ka4se67fgn4rnjt1rv8/46012501897.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610671b99e4f3---66980108210.pdfIn PDF document text
- https://bem-sa.com/img/file/76432362252.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/38132bc02c38b054e8e6fc26d2b242a2/4634578966.pdfIn PDF document text
- https://nocnepal.org.np/ckfinder/userfiles/files/3174949046.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb1ce46067---35627858977.pdfIn PDF document text
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/96757791668.pdfIn PDF document text
- http://bagliodeimille.it/userfiles/files/voxebejagudakuluzilexipu.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b38a9354375---fedep.pdfIn PDF document text
- http://nordicaluminium.ru/userfiles/file/55432799793.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/d7f09740e0600f917900f69b030f592d/69482088614.pdfIn PDF document text
- https://drisraadentalcenter.com/userfiles/file/19976193370.pdfIn PDF document text
- http://hncastlecable.com/d/files/gizofe.pdfIn PDF document text
- http://studiosiciliani.eu/userfiles/files/8873750602.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e60163986---gedabekuxunamoxubiw.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5237e63ee---29097830906.pdfIn PDF document text
- http://ceraunavoltapizzeria.it/userfiles/files/sewizoweduwunon.pdfIn PDF document text
- http://hb1004.com/userData/board/file/2483934073.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=fashion+nova+coupon+february+2021PDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000101a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A3 | 19320 bytes |
SHA-256: afeed259abead6de0eb846189ddb223615172a08e5f10d40b3fed600befa87b0 |
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font_01_sfnt_off00013478.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13478 | 11124 bytes |
SHA-256: 843126ca9c7d54b36b46ac814c82f2b078389ef4c87efff7792b4437b4aae51b |
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font_02_sfnt_off00014e41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E41 | 16120 bytes |
SHA-256: ced6d603950711d51f756264d1c68de0a4cd83b9a7a86813e716ba66ce758a94 |
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font_03_sfnt_off0001636f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1636F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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