MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload storage, suggesting a tactic to host malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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 http://k12kos.com/ckfinder/userfiles/files/dekitesozalogefupezepaz.pdf In PDF document text
- http://adice-area.com/pictures/files/rufonaxoxebowoni.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/mifagavonefezajiwunaza.pdfIn PDF document text
- https://gitedu.in/ckfinder/userfiles/files/13320943761.pdfIn PDF document text
- http://fazekaskozpont.hu/images/upload/file/2639507859.pdfIn PDF document text
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/xaduxifafog.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161558436d1f20---82824796504.pdfIn PDF document text
- https://valleyrentals.com/userfiles/file/diroxawun.pdfIn PDF document text
- http://kemnhapkhau.com/upload/files/vegikorivun.pdfIn PDF document text
- http://fermobkorea.com/userfiles/file/20211001015956.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/ejbkguuu2eekqthrap537l9n26/lebabu.pdfIn PDF document text
- https://eksiliotomotiv.com/upload/ckfinder/files/89651036557.pdfIn PDF document text
- https://adikkedua.com/contents/files/dapabezopena.pdfIn PDF document text
- https://jatransfer.com/userfiles/file/nibemuselunutoxo.pdfIn PDF document text
- https://listocrm.com/userfiles/files/sixekixusejezakusoni.pdfIn PDF document text
- http://mimarkamilozkartal.com/userfiles/files/1855370475.pdfIn PDF document text
- http://chpcentre.com/files/file/17681968286.pdfIn PDF document text
- http://chongros.com/userData/board/file/mokevifunederinipanem.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4011d631894ed17e8ee4a56bffa6b712/24971611622.pdfIn PDF document text
- http://take114.kr/FileData/ckfinder/files/20210913_FE07DD4708D00135.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614ae4812ac49---ximuduzelidadi.pdfIn PDF document text
- https://dom4m.com/userfiles/files/51774662298.pdfIn PDF document text
- http://buddhavihara.net/userfiles/file/54092510368.pdfIn PDF document text
- https://lazeo.nl/userfiles/file/wifofupinevazojoliso.pdfIn PDF document text
- http://pitchdecor-construction.com/user_img/files/wijiwurika.pdfIn PDF document text
- https://www.blondel-bois.fr/ckfinder/userfiles/files/xetuzobefotiloxamosuv.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=how+to+see+followers+not+following+backPDF 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_off0000b7dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DC | 18908 bytes |
SHA-256: c16aecc2325f2cd2860ec8befe2edb771876f7353506342053458f91f3ff3212 |
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font_01_sfnt_off0000e856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE856 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001006d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1006D | 10820 bytes |
SHA-256: 47b43f92cb5d90e6a8b75bb5a19da1fff5fb8e8a11b2d24c0ce68282b1557265 |
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