MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of external URIs and link farm heuristics strongly indicates a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16075873b0966b---juvor.pdf In PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e67bfb51454---butelaboxukanomerigepoz.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c39a1b3740---90320320364.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/de8344be575a22c9a263b8b602bd61b9/loritolalipesigomikop.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/s8qs197qrgsenq2dpfc0es2r7l/48736922494.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a726b3ce1f9---bitusezukejofodare.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/8930225edaa1de79ea84c433dc98960e/9863643702.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/ziwafumagina.pdfIn PDF document text
- http://billsky.ee/files/file/68695084192.pdfIn PDF document text
- http://sxcec.org/userfiles/file/getevesenewufitemodo.pdfIn PDF document text
- http://sneedfamilyct.com/clients/44919/File/98290853595.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bedb1743162---88420023906.pdfIn PDF document text
- https://www.pension-chevaux-haras-gabereau.fr/ckfinder/userfiles/files/57361544159.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/hf88q1llt5gq41kjs2nfq2jbhu/34626853349.pdfIn PDF document text
- http://jpind.pl/userfiles/file/26616868605.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160ce7790de4ef---kaletibeluburum.pdfIn PDF document text
- http://chocoenglish.com/_UploadFile/Images/file/mokekejerugigekukad.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160f785cc010e4---50493729608.pdfIn PDF document text
- http://mopron.ru/upload/files/26097319375.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160beff1e9a263---xejefabilud.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e669e5a1215---galebul.pdfIn PDF document text
- http://robertfeinberglaw.com/images/edit_images/file/mupozinukebilabutedinidit.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/222dd51f0b4d6453b5775eb51b3bd434/karefita.pdfIn PDF document text
- https://infoenergie-loire.org/userfiles/file/zemufikowavu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=descargar+whatsapp+plus+gb+2019PDF 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_off000104a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104A8 | 18248 bytes |
SHA-256: 678a9ab3b440befe4dd0d1d0346de767444aed0e6588454e3b00973d47386d2d |
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font_01_sfnt_off000132f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014b07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B07 | 11128 bytes |
SHA-256: 55164624a526f794f5ff98cf8fcba6ab0a2316970789f698e414ad6b444597cb |
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