MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The document contains numerous embedded URLs that point to various disposable domains and compromised CMS upload locations, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://smidgel.ru/uplcv?utm_term=not+receiving+hotmail+emails+on+android+phone PDF link annotation
- http://runhouchem.com/upload/files/gumeb.pdfIn PDF document text
- https://mk-sito.it/uploads/file/wupomijudenabokoguj.pdfIn PDF document text
- http://www.yemany.com/yemfiles/files/8271766610.pdfIn PDF document text
- http://ohsongpharm.com/ckfinder/userfiles/files/xulazotadux.pdfIn PDF document text
- https://gujaratisamajparis.org/upload/files/lenabipaworaw.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-9-11/20210911104805281018.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/20443780181.pdfIn PDF document text
- http://gzperson.com/uploadfile/files/40677134267.pdfIn PDF document text
- http://rescue119.org/userfiles/file/10801075294.pdfIn PDF document text
- https://axlthailand.com/imagexx/files/vewaroxofiwusiwifevisa.pdfIn PDF document text
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/1626554138.pdfIn PDF document text
- http://resurrection-life.net/userfiles/files/55391742866.pdfIn PDF document text
- http://thomas-zigon.de/images/file/lemulagewisa.pdfIn PDF document text
- http://urgentcarepb.net/userfiles/file/79172150430.pdfIn PDF document text
- https://ebus.myskoolapp.com/FCKeditor/FCKimgUpload/file/besosa.pdfIn PDF document text
- http://hbaoge.com/upload/files/tijunufiteriwefawi.pdfIn PDF document text
- https://sandp-engineering.com/ckfinder/userfiles/files/14983299856.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/qboihidu67q6i38ogchmiioed0/wagafase.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/57528131773.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161350b69270f0---96928113070.pdfIn PDF document text
- http://king-tableware.com/uploads/files/202109161222548404.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137c2f1aea88---fekexisimepunozasivuwa.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_off0000ec99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC99 | 18592 bytes |
SHA-256: e41dd700eb7c5dd80aca44178180d675e25590848ec4c94c6eb26a80e21dcabe |
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font_01_sfnt_off00011cb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000134c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134C9 | 11004 bytes |
SHA-256: 865207b7803cc330a099e36b8178ceb3c58b308d337bf2ebcbb0023749796b50 |
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