MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to files hosted on compromised WordPress sites, likely to distribute further malicious content. The presence of multiple compromised CMS upload links suggests a coordinated effort to host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5d85515a7---9854578251.pdf In PDF document text
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/3ef4be9cd8c85eb8ebc59b7795e039aa/fugut.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b167f91b5bd---lupenutabumepebijoret.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/57726032067.pdfIn PDF document text
- https://erdenet.mn/userfiles/file/80564190836.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/e9ea53b0b5ad6ebf4ff248aa2a6cffec/83193889279.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/beed4409251fc4fdec3dcef98e397019/rerufizukuwesexow.pdfIn PDF document text
- https://ratsimae.eemedia/contents/file/97228074263.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/99739367985.pdfIn PDF document text
- http://baggiez.net/userfiles/file/20856150873.pdfIn PDF document text
- http://dissanna.com/temp/fckeditor/file/rowafaga.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160acffe35191c---vefowuwitopevujage.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/e3c7c922885057e26a9ef97f2c9635c2/29493735393.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/vurutunos.pdfIn PDF document text
- http://tugrabilgisayar.net/resimler/files/338831888.pdfIn PDF document text
- https://parlagame.com/calisma2/files/uploads/xirinofejaxaj.pdfIn PDF document text
- http://irollee.com/userfiles/file/jomituledukinonavijolu.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/uubdfn1vfib83glve71b4u9r3n/56276953725.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/3bd1db4c6ae2adbf598d65644c3732fd/zemilujuxokufononiv.pdfIn PDF document text
- http://actybrain-consult.com/Upload/files/18287036259.pdfIn PDF document text
- https://m3csrl.com/file/gefowodaz.pdfIn PDF document text
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/54039923610.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160fa1e6b34f79---peluwa.pdfIn PDF document text
- http://coiffurenais.com/userfiles/file/bifimaxadigas.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/79fd8f5380ee83e792140d990ec38105/nerifixomelok.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=nc+fast+training+manualPDF 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_off00010cfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001250e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1250E | 19052 bytes |
SHA-256: 148161e225030653d8b0b1f7c220f18a3cd5b29dfa5dd1c41f0e7db5880f173a |
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font_02_sfnt_off0001568b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1568B | 10504 bytes |
SHA-256: cd77ae8d53d00dcd78ef072cfe3d97b762544339a5dc9a5b0e59dff15457e957 |
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