MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier strongly indicated maliciousness, supported by heuristics identifying the PDF as a link farm hosted on compromised WordPress sites. The document body was unreadable, but the presence of numerous links to potentially malicious URLs suggests an attempt to redirect the user to a site for further exploitation. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 5
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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 https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/6pp5fvdo6uca9749s5tuacb592/mijosirunurinobib.pdf In PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16088173c0ede6---16174481359.pdfIn PDF document text
- http://daoltrading.com/userData/board/file/jufifipematunonepema.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bb951c338bb---xadefuxazevirotojij.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160ab64b60cc4a---76208357378.pdfIn PDF document text
- http://smartpaintingplus.com/userfiles/files/60176613125.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/d3e22f51347c0a83a8f01bb4914798b9/61181265945.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f4e177380---88038824481.pdfIn PDF document text
- https://xaydungdonggia.com/app/webroot/files/images/pages/files/63999740628.pdfIn PDF document text
- http://thetachikappasigmaalumni.org/clients/5/56/56ac51e2ee760b54d3ff8b7d53c877b7/File/sofoze.pdfIn PDF document text
- https://powermailer.in/userfiles/file/zuzigulule.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/gm544m7t0s81alo69cms9idp9g/fimesamux.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a188f707801---70656478579.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/272e01e6804dbb260084eab5b66a2f14/7700858776.pdfIn PDF document text
- http://samilove-payitforward.com/clients/f/f9/f9b0b202ed5d2cb263a89f8a9bd08a94/File/vuwanusew.pdfIn PDF document text
- http://tuclubcr.com/campannas/file/10317530837.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b590ea52d41---17532735904.pdfIn PDF document text
- http://potlista.com/file/files/24066631519.pdfIn PDF document text
- https://alternativecarrepair.com/userfiles/file/nowikewedotuvojoni.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/6d24348b19368642e7ca3af01dbf21a5/lolokefufozuba.pdfIn PDF document text
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/fd5273aee751194d915776afa193fdd2/87060211272.pdfIn PDF document text
- http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/55851495430.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/lbc7s336ma4mrq075untdq6nv3/fuwovebix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=provincetown+to+falmouthPDF 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_off0000f364.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF364 | 16844 bytes |
SHA-256: 8efaf158e7876fe5c28227461bfa4320ee543328e0f29eec6a6fa93699dc44cd |
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font_01_sfnt_off00011f4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4B | 10688 bytes |
SHA-256: 560fed7d904d6129b1af1e3964bde0087833996924f32040361923a35c713bf6 |
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font_02_sfnt_off000137a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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