MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=que+es+una+oracion+bimembre+y+unimembre+ejemplos PDF link annotation
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160773182e2671---sivevarofunosuzazuxi.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608b759864f03---39184786951.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/113c64bc585bb82cfc5c5064a9aa4e2d/wewikusem.pdfIn PDF document text
- https://uangraja.com/contents//files/vagebagikepavenum.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/83944d69f19fb3f3f8c02844c1decf0f/55942508681.pdfIn PDF document text
- https://maintogelonline2.org/contents//files/vabanomagerafafuzur.pdfIn PDF document text
- http://ckpak.com/fckeditor/userfiles/file/zekogeratufasexonukir.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/9610214117.pdfIn PDF document text
- http://szpital-sulecin.pl/images/fckfiles/file/miwusedexotojo.pdfIn PDF document text
- http://goldnumber.info/userfiles/file/88048798635.pdfIn PDF document text
- http://coffee33.ru/archive/file/jifoguvit.pdfIn PDF document text
- https://telewebmarketing.com/FCKeditor/file/vejegiluralevol.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e7cc720048f---mubojosuloxoritor.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/2fdd845029179ca3bbcbcd6086f733a3/xefumuregiwedogubefajaki.pdfIn PDF document text
- http://ttccid.com/userfiles/files/lezezidobudemiguxazi.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/83a4679f349a310578dee3326387831e/30832746245.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0c49743f3---zabupekeguv.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/34597278514.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/95098624690.pdfIn PDF document text
- http://malbreil.com/userfiles/file/tovonozurub.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_off0000f663.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF663 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E7A | 10980 bytes |
SHA-256: fdec4c133bce6e194bc16a27e01990fc43bbace827bd53e82ba24068f0fa828a |
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font_02_sfnt_off000127d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127D0 | 18484 bytes |
SHA-256: b212736585573194592c859dd8f3578fa405bd8c2f40ea6aa871b2282ddc923c |
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