MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, likely serving as a link farm to distribute malicious content. The document body and metadata suggest a deceptive lure, aiming to trick users into visiting these compromised sites. The ML classifier strongly indicates malicious intent, and the presence of multiple external URIs supports a phishing or content-distribution attack pattern.
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://archism.ru/uplcv?utm_term=funny+versions+of+happy+birthday+song PDF link annotation
- http://www.truca-taoules.com//ckfinder/userfiles/files/25277825041.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609f145f9a6a5---46125292672.pdfIn PDF document text
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607522ce77bc3---32850867543.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/bedoduxorabibako.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607e58f182484---vekotovidugozoxu.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160986988026c8---22552612210.pdfIn PDF document text
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/ccd1860c5983e1b8e2543f220b4a5279/33696789205.pdfIn PDF document text
- http://bilmatbasim.com/userfiles/file/71908935809.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/0u5bh4bgei9t8s48notm3cvqim/rugerufavojigi.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b44cc0fad---sotolukeliwakojuvigel.pdfIn PDF document text
- http://canadanur.com/resimler/files/wazezud.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f1b48105a---63519457436.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/lf1ba85e5d4cblsh8pqv2j4eis/mazuzafureperubusiriferaj.pdfIn PDF document text
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3ccb3b50b---74853778554.pdfIn PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160b834714da82---57068385630.pdfIn PDF document text
- http://zabradli-znerezu.cz/userfiles/file/rajubukinumiwodenikemor.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/ffc5ea090b2f022740bf9e992f623a36/wosojifadulivog.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_off0000fa3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3B | 5528 bytes |
SHA-256: 78bf309d05ed2079f94a81873f15839b956f48844b16a880790171fe6f4cc425 |
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font_01_sfnt_off00010d0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0C | 11188 bytes |
SHA-256: dd0a4e2cf594828b51996345f8a5b6885de2a1cf395ac52bf2578ec7b8556dcb |
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