MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://medosojewellery.com/userfiles/files/zapajujatudotinol.pdf In PDF document text
- http://tikatalog.sk/_files/file/tasosam.pdfIn PDF document text
- http://zdravi-kromeriz.cz/files/file/25027926403.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc5cd3b28e---babivuzeririk.pdfIn PDF document text
- https://nocenzura.space/web/img/podborky/files/xemumifamizazudor.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/b00d404d1bf5a376359db755e1288104/jimiserarupomi.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b20e44164a7e915297d4213c000ca107/78385364023.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/3431593672.pdfIn PDF document text
- http://knshzj.com/CKEdit/upload/files/pakepokasofuf.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/lexuva.pdfIn PDF document text
- http://xn--o79av69abka850ab6c.com/upload/file/202105310924233788.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16121095d82c4d---liporuvujugen.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/4dea42f79b110761354fee04c4724aa9/xolipokujuxugudukupubenar.pdfIn PDF document text
- https://dm288.com/slicice/file/pexaxoke.pdfIn PDF document text
- https://hogies.com/includes/template/uploads/file/lusigewazemipirepik.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/97591441150.pdfIn PDF document text
- http://gemculture.com/userfiles/file/tisiditibapeselivo.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/sirubi.pdfIn PDF document text
- http://kukdae.com/files/fckeditor/file/ritudazalixolop.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/0491c6cacea787d7a1b2d3787d7f151b/81670262728.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e10907174c2---38768546026.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bac8de82857---zovasepap.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef86ae6d73---19442090609.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123dfa62cfaf---16974994841.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=land+rover+discovery+2003+owners+manualPDF 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_off000106a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A5 | 19488 bytes |
SHA-256: f84bd04e0d51b876806c0c806b11ff13a8c20a273c3453dfbb747695ae8cab6f |
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font_01_sfnt_off000139ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015216.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15216 | 11168 bytes |
SHA-256: 868d49b14484570540599078d2805c2c1965b75172ce07183baa55852b83db39 |
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