MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. While no scripts were explicitly extracted, the nature of the embedded URLs and the 'compromised CMS upload' heuristic indicate a strong likelihood of malicious intent, possibly involving JavaScript execution within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://pistant.ru/uplcv?utm_term=a+level+maths+pure+solution+bank PDF link annotation
- https://erdemlerkoleji.com/resimler/files/7237938794.pdfIn PDF document text
- http://gshosnab.ru/userfiles/file/65294407703.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161430c9217471---valofixuzif.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/66149923931.pdfIn PDF document text
- http://alles-vom-schreiner.de/userfiles/file/87640229253.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16134b1079f116---pafevagebix.pdfIn PDF document text
- https://khangle.vn/uploads/images/files/99315185074.pdfIn PDF document text
- http://networkinglikepro.com/ckfinder/userfiles/files/24633188269.pdfIn PDF document text
- https://nepalihemp.com/ckfinder/userfiles/files/baluroserapevi.pdfIn PDF document text
- https://hkbca.org/UploadFiles/file/20210929001201176.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16143ad1b27f0b---57626317198.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/3863260c18e1ac442e7520899a1586a0/ziwizoj.pdfIn PDF document text
- https://fenicia.uy/fenicia.com.uy/uploads/files/22767896383.pdfIn PDF document text
- http://speckrepeg.by/UserFiles/files/12268092160.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/zudujovur.pdfIn PDF document text
- http://seychelles-resort.com/images/blog/file/lujevafonutawewum.pdfIn PDF document text
- http://mkpstroitel.ru/upload/files/sotividomizivuf.pdfIn PDF document text
- http://jtour.vn/userfiles/file/rosoxubokegazojiwamojemit.pdfIn PDF document text
- https://stotex.rs/files/suwedis.pdfIn PDF document text
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210920152231.pdfIn PDF document text
- http://lagerunda.it/public/upload/file/77772040827.pdfIn PDF document text
- http://vuason.vn/upload/files/lumufudomupawefefuli.pdfIn PDF document text
- http://pk.mo/userfiles/file/63519400685.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_off0000bb85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB85 | 19052 bytes |
SHA-256: 6cd018138c78a3a8df2b5ea5278737ea701a131cfaf4f92337afe4fd72b2cf42 |
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font_01_sfnt_off0000eccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECCC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E3 | 10896 bytes |
SHA-256: 999ade25b188c5f349bd123c938d5a6bce0af8337caae99d42a7e539ed1fecb7 |
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