MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised WordPress uploads and other domains, suggesting it functions as a link farm or redirection mechanism. The presence of embedded URLs and the PDF_URI heuristic further support that the document's primary purpose is to direct users to external, potentially malicious, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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=find+the+arc+length+of+the+partial+circle PDF link annotation
- https://pointvirgule.ca/upload/editor/file/8680961369.pdfIn PDF document text
- https://eurochen.com/UpFiles/WebEditorFiles/file/99604227324.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/wulalomo.pdfIn PDF document text
- https://viktorina.ledoritulys.lt/files/71137040929.pdfIn PDF document text
- https://playindiano1.in/ckfinder/userfiles/files/11995106353.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613038c93712d---91012007506.pdfIn PDF document text
- https://jecoexports.com/ckfinder/userfiles/files/tezuzozo.pdfIn PDF document text
- http://beiwendq.com/data/attachment/file/86043467563.pdfIn PDF document text
- http://lokalsport.no/userfiles/file/26429537013.pdfIn PDF document text
- https://khangle.vn/uploads/images/files/85635706697.pdfIn PDF document text
- https://activepymes.com/pub/file/jewiseva.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613496c5b7bc4---dovanurukoxekex.pdfIn PDF document text
- http://gps-ambroisie.com/ressource/site-image/files/64081951535.pdfIn PDF document text
- http://airsoft1.ro/files/file/jedopokilorekipawuwax.pdfIn PDF document text
- https://broadcasthub.com/ci/userfiles/files/gekiverovo.pdfIn PDF document text
- https://nsck-cykelmotion.dk/ckfinder/userfiles/files/73154198891.pdfIn PDF document text
- http://alumcity.ru/userfiles/file/59272562394.pdfIn PDF document text
- http://studioguidobarbieri.it/userfiles/files/vovodad.pdfIn PDF document text
- http://naso10.com/userData/board/file/67524271555.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/2sabovi8tbqdas5v6vsrsjb0k7/wovagupilijuzedoxeso.pdfIn PDF document text
- http://dailycan.com/userfiles/files/rines.pdfIn PDF document text
- https://wolfgang-photography.com/userfiles/files/6697197667.pdfIn PDF document text
- http://uitvaartverzorgingsindex.nl/images/uploads/86133350519.pdfIn PDF document text
- http://sdes.in/uploads/10395919204.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_off0000b99d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB99D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1AF | 17924 bytes |
SHA-256: 7eeec0d0640b67bea4722e0657c1e23bd6a0832643dab8f9daa7bb7c62d09bc7 |
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font_02_sfnt_off0000ffb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB5 | 10708 bytes |
SHA-256: 8b982d4b4bf251ecb0b2a9881062284a35b594b94b40f4ed6598a4f4c7b9b3b0 |
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