MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised or disposable domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicates malicious intent, likely to redirect users to malicious sites or for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://cructi.ru/uplcv?utm_term=crossfire+game+rules+pdf PDF link annotation
- http://amandatour.ru/js/ckfinder/userfiles/files/73424222863.pdfIn PDF document text
- http://k1a.ru/images/files/file/68204184127.pdfIn PDF document text
- https://jackyrouxmethode.com/userfiles/file/71776153615.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1d6a1f9f1---vonetarerak.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/72170424544.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/3cf1n1oje72o0j50h2b5hltfur/benidokefawonenugiwet.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/0f36a11572b30b3d53bdfd8950ec3294/zelobokesisal.pdfIn PDF document text
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/66569700033.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/miwukov.pdfIn PDF document text
- https://abeess.com/userfiles/file/65683406672.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/rde8tb9ohd3k1lv72nqedsg11k/lajaxuti.pdfIn PDF document text
- http://a2itsolutions.com/chop/multimedia/userfiles/file/dadagukupi.pdfIn PDF document text
- http://fred-robin.com/ckfinder/userfiles/files/saguwuvixaziferomiguwuk.pdfIn PDF document text
- http://samsunyapi.com/userfiles/files/keguxafe.pdfIn PDF document text
- http://forter.vn/hinhanh/file/bimemesi.pdfIn PDF document text
- https://www.asoriofrio.org/ckfinder/userfiles/files/boduvix.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/lenenivelaverozowibijidom.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/3f096513297e8f7ff2a3403c66681176/6676960231.pdfIn PDF document text
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/ednrlv35ug5dn0nqsk6fqi5hl0/kawasorexorite.pdfIn PDF document text
- http://canadanur.com/resimler/files/zujugepunirajutav.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e16dc1a28---logesiboropitefavuxud.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_off0000ee0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE0D | 10772 bytes |
SHA-256: c91f40d817f35bce6e73431a8d8f5d049414a522b30ff62b60cd6f3b656cf398 |
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font_01_sfnt_off000106a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A3 | 17100 bytes |
SHA-256: dc3e91b6b5e1981b89983fa2922fe61707d876fc3d8fd8b6cfaf4b38f1336b56 |
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font_02_sfnt_off0001333a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1333A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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