MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm. The ML classifier strongly flagged this PDF as malicious. The presence of multiple external URIs and a link farm structure suggests an attempt to redirect users to potentially malicious sites, possibly for SEO manipulation or to host further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://crysiq.ru/uplcv?utm_term=how+to+write+your+name+in+mayan+hieroglyphics PDF link annotation
- https://soudurelauziere.com/upload/editor/file/wukuxatej.pdfIn PDF document text
- https://adtw1.com/ckfinder/userfiles/files/zabobotiwigezafadijelisoz.pdfIn PDF document text
- http://webbuilders.com/files/file/gelizuwazatu.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/b0be05029e9b959d478f41f77332f737/12211123072.pdfIn PDF document text
- http://imi.vc/upload/files/buwijazepal.pdfIn PDF document text
- https://combrooncom.com/contents//files/pokodiros.pdfIn PDF document text
- http://willettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/86103394094.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/82155573960.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/mesisulofusogosorikafasok.pdfIn PDF document text
- http://myphammonly.com/luutru/files/68973848248.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16114625367787---morunejirakazenig.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/0qtgnprnehbsg2eq0a0b06h1ah/95493296183.pdfIn PDF document text
- https://jancsoalapitvany.hu/ckfinder/userfiles/files/zumomubu.pdfIn PDF document text
- https://kabelkyaobuv.sk/editor_uploads/files/xusarafu.pdfIn PDF document text
- https://samowar.me/upload/file/wesokefiduni.pdfIn PDF document text
- http://phayaotechno.com/UserFiles/File/vikeboremupagejuxunetuw.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc885b008d---nuwovuvekubizumatabomulej.pdfIn PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/62e1e101e92dce2571dd7c2342a5ae7c/fuluweralalikodud.pdfIn PDF document text
- https://bluetact.com/locktactyuma/userfiles/file/81067486906.pdfIn PDF document text
- http://biomassasia.net/data_ed/userfiles/file/8579652049.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611018acf3c02---64613180374.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607557d3af279---xegop.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/kogafinixubusub.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_off00011526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11526 | 17576 bytes |
SHA-256: b0b7afc0f2baf36e8f6b3078a08bede8a32a86f2261945ea347741e7de9d5453 |
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font_01_sfnt_off000142b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142B0 | 11112 bytes |
SHA-256: 4c6d7d5e1cb962aed2cc9632a6199a496af2111fada65949d1308127686fadcb |
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font_02_sfnt_off00015c78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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