MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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 0.9974
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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 http://logo4you.dk/userfiles/file/pexewonanepefufiladujal.pdf In PDF document text
- https://nezrenpin.com/calisma2/files/uploads/63170194662.pdfIn PDF document text
- http://familiehollander.nl/images/uploadedimages/file/83314285614.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613583bb8575b---59422211939.pdfIn PDF document text
- https://foulardfotografando.it/file/9260534101.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e0d1763ca---pedafosinowegomajidajira.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/67590677676.pdfIn PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/5c0292af24e0886e5e636d51b9fa7e55/55405288993.pdfIn PDF document text
- https://www.groupe-coelho.fr/ckfinder/userfiles/files/26836205205.pdfIn PDF document text
- http://alarmy-kamery24.pl/userfiles/file/zefofafijisepab.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/c08062b2b9daf7bb1c2ab0c1eb20cd4d/59232831703.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-7/20210907221514433020.pdfIn PDF document text
- https://chineseclothingonline.com/File/tufijanigirabagoxusupawa.pdfIn PDF document text
- http://eakqshop.com/ckfinder/images_store/files/punufavedonolijodubujikiz.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161361bc0d7b2d---wepajaxokivomerofasado.pdfIn PDF document text
- http://phutungototuanphat.com/img-tvdl/files/zelegi.pdfIn PDF document text
- http://kechengchem.com/upload/files/65334987355.pdfIn PDF document text
- http://vitacanes.com/uploads/files/kawilisepowonaz.pdfIn PDF document text
- http://newbusan.net/FileData/ckfinder/files/20210906_20005D698B933916.pdfIn PDF document text
- http://a899.net/userfiles/file/wegedurukibitije.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7f6774853---64844842392.pdfIn PDF document text
- http://wu-pao.com/upfiles/editor/files/supeleriwilo.pdfIn PDF document text
- http://debeight.net/UserFiles/File/jurimigove.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=sims+4+all+expansion+packs+downloadPDF link annotation
- https://www.rt9.rspo.org/ckfinder/userfiles/files/81081773001.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_off0000dddc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDDC | 10912 bytes |
SHA-256: dbb76dcdc0be61024d0be4ce8c8a83ec7746c9883aa94043d21bc5a777aac429 |
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font_01_sfnt_off0000f726.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF726 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F38 | 18192 bytes |
SHA-256: f01c6d885924ca7b2c3012ca3ed71eb9dec8a88737839684a3fa483c7a9bbdb5 |
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