MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics further supports the attack pattern of redirecting users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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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 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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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://inwebjor.ru/uplcv?utm_term=the+happy+prince+oxford+dominoes+pdf PDF link annotation
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/161317bb20b884---52284662600.pdfIn PDF document text
- https://adian.eus/files/galeria/files/kodelogafudi.pdfIn PDF document text
- http://webinaris.blog/ckfinder/userfiles/publics/files/sofuzokavoleb.pdfIn PDF document text
- https://promise-land.com/upload/file/mejujumekaxedafegokup.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/43025217015.pdfIn PDF document text
- http://taaltoetsvo.nl/userfiles/file/5023087139.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/3e6d95792182d1882e9c094e8431a613/xaxojuwojadozujonipobes.pdfIn PDF document text
- https://springkasteelhuren.be/userfiles/file/vabelalezutejul.pdfIn PDF document text
- https://koparieshorvathbusz.hu/files/file/vejodev.pdfIn PDF document text
- http://merrygoldholidays.com/ckfinder/userfiles/files/92046561564.pdfIn PDF document text
- https://nullemont.fr/nullemont/ckfinder/userfiles/files/televaloxa.pdfIn PDF document text
- https://jerseyshorepirates.com/userfiles/files/13465434487.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613b08fd04d2b---1798264649.pdfIn PDF document text
- http://avvolodin.ru/upload/file/fimarapazivojazagi.pdfIn PDF document text
- http://beautifulmoda.com/userfiles/files/vurujizebuzi.pdfIn PDF document text
- https://inprovitchile.com/ckfinder/userfiles/files/lefekalilewizejeruru.pdfIn PDF document text
- http://santeh.md/img/files/ruvatuwerofitugobogapufi.pdfIn PDF document text
- https://scalper.ir/data/files/file/tasiwuliwedinezixu.pdfIn PDF document text
- http://gbfrjournal.org/pds/userfiles/files/kigapelebudiju.pdfIn PDF document text
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/mejov.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_off0000cc7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC7D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e48f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE48F | 18048 bytes |
SHA-256: 9ef703d6d5bac12940c53157118667a4f59c515cdbeb278dcc6eafa128dcadd9 |
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font_02_sfnt_off000112d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D6 | 10920 bytes |
SHA-256: ead228f0c79a9da4e4c89f312b8f0f32cc4466519972f04560f12751c20e4121 |
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