MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs, several of which point to compromised CMS upload directories. The ML classifier and ClamAV both strongly indicate maliciousness, with ClamAV identifying it as a phishing trojan. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://autodilykanka.cz/cmsimple/images/file/xogaziz.pdf In PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/ibjts4pfkaggicvg7tuttkkk56/xovepaw.pdfIn PDF document text
- https://jkmart.net/FCKFiles/File/kiwifagaxasazuwip.pdfIn PDF document text
- https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/4abcdd972b475c3a3b5c42d9ccaf666a/76586113641.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/mupufepineniribi.pdfIn PDF document text
- http://ferrogep99.hu/static/media/file/lamodewojo.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d28658cc01---62476685929.pdfIn PDF document text
- https://kovtec.pl/eurostyl/photos/file/supotuxuxakewemafaj.pdfIn PDF document text
- https://himalayanthailand.com/image/upload/File/bizodozosakivug.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210828015519.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/49802923801.pdfIn PDF document text
- https://people11people.com/uploads/File/75201528602.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aba893c57fb---sitenupolow.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/gizakumilu.pdfIn PDF document text
- https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/kolelufezotoxuxawufasinos.pdfIn PDF document text
- https://kingdomdatesuae.com/userfiles/files/84039375550.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfa3095856---91063114967.pdfIn PDF document text
- http://tea-ra.com/user_data/upload/save_image/files/73136339386.pdfIn PDF document text
- http://abimobiliare.pl/pliki/File/98872940094.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/5669772611.pdfIn PDF document text
- http://noithatachau.vn/webroot/img/files/gesexepivazelujen.pdfIn PDF document text
- http://bakoca.hu/files/file/sopazipowom.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/2bd99562df48a24bafcd4d94be0f641e/72215416189.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=arbitration+and+conciliation+act+amended+pdfPDF link annotation
- 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_off0000e503.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE503 | 17300 bytes |
SHA-256: 6d2fc607506220a1bc25da71c8a7063ad47ef847f006818166502178609e4e6b |
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font_01_sfnt_off000111bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111BC | 10732 bytes |
SHA-256: e1cb64a35472d427a3dd713b75bf838be188ea775db2012ba1ba675383bac914 |
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font_02_sfnt_off00012a2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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