MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to potentially compromised or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the document is designed to drive traffic to external sites. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://chcial.ru/uplcv?utm_term=a+visit+from+the+goon+squad+pdf PDF link annotation
- http://h-st.nl/bestanden/files/veloneteni.pdfIn PDF document text
- https://rmduncanrealty.com/userfiles/files/limibegajaveg.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/tulifisube.pdfIn PDF document text
- http://streathamtaxi.com/survey/userfiles/files/64600290445.pdfIn PDF document text
- https://coimbatorepressclub.com/FCKeditor/userfiles/file/98581978617.pdfIn PDF document text
- http://zjbfjt.com/upload/files/zusupodide.pdfIn PDF document text
- http://neonatal-surgery.ru/userfiles/files/sigebejudiwuditetemowu.pdfIn PDF document text
- http://sartor.ru/upload/files/67620302765.pdfIn PDF document text
- http://nenayu.com/filespath/files/20210913094547.pdfIn PDF document text
- https://granitnet.hu/editor_up/24876636535.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/81598500573.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/55305396505.pdfIn PDF document text
- https://e-motorcycle.tw/upload/emotorcycle/files/38238817222.pdfIn PDF document text
- https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/61078078033.pdfIn PDF document text
- https://burkina-businessschool.com/business_school/uploads/file/xidokogorepinono.pdfIn PDF document text
- http://sutipatika.hu/userfiles/files/laxosamegixowukej.pdfIn PDF document text
- http://logisticsnetworks.net/ckfinder/userfiles/files/92357101936.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/lowimewumazedibopuj.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16130bb2c65d14---28982421325.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/50606632961.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6b9bf2e4d---89093793587.pdfIn PDF document text
- https://gornjastubica.hr/files/zuburizejexakupazuwe.pdfIn PDF document text
- https://dom4m.lv/userfiles/files/vokelojeselifikisiv.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b9759905b---98614243840.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161462e10992ee---29457737197.pdfIn PDF document text
- http://s292376414.onlinehome.fr/datas/imgmail/file/fevavozeteta.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_off0000e04e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE04E | 11192 bytes |
SHA-256: fc3860c8c298cc3f598abd2f765dc2c3cbfbca93ab936a1392a828de1dd9f573 |
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font_01_sfnt_off0000f9d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D6 | 17460 bytes |
SHA-256: e8f1fe9b6fbc257aa28424d1f414e217aaee3efa09d62b01ca85a7d02bdf8eff |
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font_02_sfnt_off00012731.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12731 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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