MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document functions as a link farm, directing users to numerous external websites. Several of these links point to compromised WordPress sites, indicating a potential attempt to leverage these sites for malicious distribution. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of its harmful intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://queure.ru/uplcv?utm_term=twinkle+twinkle+little+star+piano+mozart+sheet+music PDF link annotation
- https://businessservicesuk.com/userfiles/file/kixivimuxomukanivukajuk.pdfIn PDF document text
- https://chpcentre.com/files/file/65264094778.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfb59b5243---17228838665.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/fp80btrfifuteodo8i5iohveht/wemisatotidedi.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/titebubagid.pdfIn PDF document text
- https://china-glass-mosaic.com/userfiles/files/20210606_172850.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8d0f69c1e---gikaf.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee6a81c575---pixibisotevi.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a714b8aec87---fifabudijezudoxijorigag.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c85dfc1c36---nuxob.pdfIn PDF document text
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/b4ce535e31e06896bbf68b486bbb812b/68805930319.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607130ecae432---78922061206.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a935758cccf---sifel.pdfIn PDF document text
- http://ketoanaca.com/uploads/image/files/verigofolum.pdfIn PDF document text
- http://novussiteyonetimi.com/uploads/file/nulaxukigofoxuf.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160793b160a48b---metexidetemaf.pdfIn PDF document text
- http://broadgatecapital.com/userfiles/file/laxopidajodigotep.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e0c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C0 | 5328 bytes |
SHA-256: 264b2f2c5595e60902e3676a65e544d51067f8fa3d25aec5dc4d9f42051482f6 |
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font_01_sfnt_off0000f2d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D1 | 10636 bytes |
SHA-256: 6239513a8e4e290adc87d328f87f0b2732c14a69280da0ed7f0d70925941173e |
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