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 0.9986
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://www.pethouse.es/ckfinder/userfiles/files/56455927195.pdf In PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608751a092c12---fegotufunijokor.pdfIn PDF document text
- http://renovator.cz/files/file/91464136744.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/lofasizabetaputomage.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ab83742700c---gixevafava.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/27865738233.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9dd82ad5df---81817882253.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091821f61a7e---xawenomezasonerigo.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/25c933b7b7b9fed4a313f2f05803efd9/mavunugewik.pdfIn PDF document text
- http://webinaris.biz/ckfinder/userfiles/publics/files/57426406897.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/993d86a966fbdee4d053e003f3b8b5a6/daguso.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/4417127174904cb66c5a1da7aa4711be/70889982571.pdfIn PDF document text
- https://dangeloremodeling.com/nbloom/fckuploads/file/lominerubimivafomekebav.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1b94b263b---jogebelexubenixora.pdfIn PDF document text
- https://inijariku.com/ckfinder/userfiles/files/64940973978.pdfIn PDF document text
- https://textosolutionslinguistiques.ca/upload/editor/file/xorilenunuvoti.pdfIn PDF document text
- http://bahtiyardishekimi.com/fckfiles/file/55568546382.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610474a4a9e55---63148799682.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/b1uqk5s69ug8ivagt973i4i4c8/sagutabiwepezowide.pdfIn PDF document text
- https://andana.us/files/files/bukigivixozig.pdfIn PDF document text
- http://globalfeedindustry.com/upload/files/42755841314.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16106add6bfa58---24429512979.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/kpvh6139qgkfqiuenre6t8f6bq/lalutixotibefegab.pdfIn PDF document text
- http://holdemigny.fr/ckfinder/userfiles/files/87158093867.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=sultan+hindi+movie+in+tamilrockersPDF 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_off0000f6d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6D5 | 10968 bytes |
SHA-256: f55e80e086a888bb3c74f5d98acbc8ab0e3d3fb8573e5bd9a0e58f0248fe9b03 |
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font_01_sfnt_off00011011.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11011 | 17052 bytes |
SHA-256: 8f015f790050c7474a9112f2fd211e3fa110a28a8b89c672a1ab223cc7f13d72 |
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font_02_sfnt_off00013c87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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