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 0.9975
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://edanieltour.com/FileData/ckfinder/files/20210717_656ADDB78FF6ABD9.pdf In PDF document text
- http://chroscina.com/userfiles/file/12471092209.pdfIn PDF document text
- https://esvigo.com/upload/files/68246636491.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee0b5830f1---75812967335.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f3c59974540---fadisikurabuf.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607142939676c---24395318205.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161010b875495c---pabexesuzebemibebep.pdfIn PDF document text
- http://esteel.my/userfiles/file/batexoxo.pdfIn PDF document text
- http://caryhigh1987.com/clients/41333/File/5113061233.pdfIn PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1879b9624---mivadi.pdfIn PDF document text
- http://mobilenmr.com/files/files/lawuvaragotebe.pdfIn PDF document text
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/zunazifisigedurezu.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/vazujikitafomapupupiduj.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612189ce4bf78---retidufiluwuvutirepasikup.pdfIn PDF document text
- http://www.weilandensemble.nl/ckfinder/userfiles/files/11789399417.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/87614559699.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/23763456980.pdfIn PDF document text
- http://droneducational.com/admin/userfiles/file/gejademexaxavisaxil.pdfIn PDF document text
- http://self119.net/upload/userfiles/2021/08/files/210812224454.pdfIn PDF document text
- https://cafesca.org/ckfinder/userfiles/files/tobutemejukopi.pdfIn PDF document text
- https://anukulagrotech.com/userfiles/file/65115512119.pdfIn PDF document text
- http://fiorenzuolatrack.it/userfiles/files/96773067132.pdfIn PDF document text
- https://bursac.net/userfiles/file/9668563844.pdfIn PDF document text
- http://darstin.com/userfiles/files/72888225065.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=davv+cet+previous+year+question+papers+pdf+group+aPDF 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_off0000cfb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB7 | 18756 bytes |
SHA-256: 2650bee18e7b98337573ff36b4d1c9905e23d81e0956340a7e34a3e698170bd5 |
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font_01_sfnt_off0000ff60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF60 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011777.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11777 | 11176 bytes |
SHA-256: 2d9244acd1053e533179baf9c080570b522859ba172389277b3ac352e1f1e523 |
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