MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, suggesting it's designed to redirect users to malicious content. The ML classifier strongly indicates maliciousness, and the heuristics identify it as a link farm on disposable hosting, likely serving as a lure for phishing or malware downloads. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 5
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://krisoc.ru/uplcv?utm_term=machzor+online+pdf PDF link annotation
- http://aftckwt.com/uploads/file/4335976190.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/2cf157c90215455373dbb148f0f95532/5331612812.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9c17f83bfa---lojowenasumifobalud.pdfIn PDF document text
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/4ff07472bb2b5bca381dded4356aee7f/fekikademelusikomupewuka.pdfIn PDF document text
- http://kiuruvedenlukio.fi/tiedostot/file/48105318588.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/4q5tfqp6tk1k2l9b2p1d43i7u3/26310612449.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/8f9139fa8d59f93a0f0a52e6aa09c53d/xugabutizituvisoborabi.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d812ba774f7---38549409112.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946f74c37ff---73798643362.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160714cceee0f2---84668837904.pdfIn PDF document text
- https://xuantruongtech.com/images/ckeditor/files/4410900400.pdfIn PDF document text
- http://asid.rw/userfiles/file/40971502791.pdfIn PDF document text
- http://hieuchuan.com/upload/files/22060803382.pdfIn PDF document text
- http://robertfeinberglaw.com/images/edit_images/file/97233169014.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e051ee1ec---kerex.pdfIn PDF document text
- http://ypperfect.com/ckfinder/userfiles/files/9480920275.pdfIn PDF document text
- http://aucoindeshalles.com/menu/file/62128112276.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1611520650dbe8---maruwedezok.pdfIn PDF document text
- https://ruta.hu/ckfinder/userfiles/files/nefalojidofonowakuv.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16076201d863f7---12570448691.pdfIn PDF document text
- https://pristineleather.com/userfiles/file/23361136474.pdfIn PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-5-7/20210507092439489431.pdfIn PDF document text
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/ejo0akisebrf09hfrn5grnk1ie/lorubaj.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_off0000c65c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC65C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_01_sfnt_off0000de6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6E | 18028 bytes |
SHA-256: 4fb0e777c73eee413edd72e7e70a95cb6bab53a3dd8d59b094191c03309804c5 |
|||
font_02_sfnt_off00010dd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD3 | 10504 bytes |
SHA-256: 8feb63e27e2f45e2505ba89e5a9fdcfebc87fafb0d7c9a41c3d9dd6a6d44dbcf |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.