MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by an ML classifier as malicious. It contains an embedded JavaScript stream and numerous URLs, many of which point to compromised WordPress sites or are part of a link farm on disposable hosting. These elements suggest the PDF is intended to lure users into clicking links that could lead to phishing pages or malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://brincandoeaprendendo.com/fotosempresa/files/27374656109.pdf In PDF document text
- http://giaexploring.it/userfiles/files/70310750772.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/pegavilumizu.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/43655109720.pdfIn PDF document text
- http://fishingas.com/userfiles/file/vezofirodibigapo.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144145971dc4---25635954466.pdfIn PDF document text
- http://nachhilfeschule.havonix.com/ckfinder/userfiles/files/1939369027.pdfIn PDF document text
- http://solo-reisen.com/media/images/file/64497527775.pdfIn PDF document text
- http://aburobocon2019.mnb.mn/uploads/files/30884885393.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/xalimizik.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/55345850196.pdfIn PDF document text
- http://fincasotilloviejo.es/files/sotillo/_repo/file/16610955024.pdfIn PDF document text
- http://turskazka.ru/ckfinder/userfiles/files/25219319110.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f0fb90cff---xujen.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9e9cef7d6---49463905583.pdfIn PDF document text
- http://freewest.at/fajoj.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/32844252542.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/64357913520.pdfIn PDF document text
- http://georgewongdesign.com/gwd/upload/files/xafus.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e906826894---12170692345.pdfIn PDF document text
- http://feuerwehr-mittenwalde.de/mediathek/files/ketivot.pdfIn PDF document text
- https://terminal.hr/userfiles/file/99618784907.pdfIn PDF document text
- http://xn--h49al71atridzo.com/userData/board/file/14362905398.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=download+data+ppssppPDF 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_off0000f2ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CE | 10148 bytes |
SHA-256: 4f643b5c66d2181ccd1cba52a6ff54d9d542b8f89c0813cf42843923c0e2f568 |
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font_01_sfnt_off000109a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109A9 | 18096 bytes |
SHA-256: a2c76964fc0d26110963890f9433cc2a7befb9f11f13894927da969a2275c12c |
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font_02_sfnt_off00013823.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13823 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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