MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific pretext, but the overall structure points to a link farm designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://infrive.ru/uplcv?utm_term=abbreviation+quiz+questions+and+answers PDF link annotation
- https://santchavarabed.in/ckfinder/userfiles/files/84378708768.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4766d45e4---tizonisivef.pdfIn PDF document text
- http://pro-roubenky.cz/UserFiles/File/wepizivebe.pdfIn PDF document text
- https://3rproject.eu/ckfinder/userfiles/files/65698554021.pdfIn PDF document text
- http://tiendanatacion.com/noticias/files/jujobuzezilujozulod.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/6e44dbaf8ca7e7bb0f262ff12f3bf807/jatebe.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614ca5da6b28d---59361835477.pdfIn PDF document text
- http://ytovietnam.net/ckfinder/userfiles/files/48820027587.pdfIn PDF document text
- https://namkhoasaigon.vn/web/images/files/fofoxazoki.pdfIn PDF document text
- http://hzaidele.com/images/upload/File/gatex.pdfIn PDF document text
- https://carmelocuritiba.com.br/ckfinder/userfiles/files/5979574557.pdfIn PDF document text
- https://konteshamamotu.com/userfiles/file/71146917329.pdfIn PDF document text
- http://uktohabbarijamalta.com/files/file/47382866155.pdfIn PDF document text
- http://mueblesdepladur.es/1/userfiles/file/1857258575.pdfIn PDF document text
- http://taaltoetsvo.nl/userfiles/file/54888050900.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151652db373e---52096938394.pdfIn PDF document text
- https://www.nbc.com.vn/ckfinder/userfiles/files/lokavuwumulonikisajebodu.pdfIn PDF document text
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/33152805675.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/28f5a6ccdffa7bca1fd77e417f3ee012/75449613189.pdfIn PDF document text
- http://skyrybupaslaugos.lt/uploads/files/4338343678.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/pifefakopulafilezogedeja.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_off0000acef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACEF | 16116 bytes |
SHA-256: f07a9d4340d32a079f66b5120a1f46da862039e452efaed1d3a71d6a81fd00bf |
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font_01_sfnt_off0000d605.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD605 | 10776 bytes |
SHA-256: f1f130f3314514607e8fe7eaf353fcc35e83811641c7e0f8036ffa0931ff19b0 |
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font_02_sfnt_off0000eee4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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