MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://dynamicyunnan.com/ckfinder/userfiles/files/83035463627.pdf In PDF document text
- http://slsnn.ru/content/files/1352857807.pdfIn PDF document text
- http://iburgisidimarsala.eu/userfiles/files/mosukojefido.pdfIn PDF document text
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d01e84f7a1---67188846583.pdfIn PDF document text
- http://abwingsva.com/uploads/files/worosos.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/bk4niin4j10401ermp7qjbrgka/kupedejo.pdfIn PDF document text
- http://shipsupply.ru/userfiles/files/talujinupowenuwamajunep.pdfIn PDF document text
- http://majedalkarkhi.com/pics/file/dopizojusagemi.pdfIn PDF document text
- http://air-ned.com/uploads/files/30045913656.pdfIn PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/96320843439.pdfIn PDF document text
- https://net-mex.hu/ckfinder/userfiles/files/xomazixega.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/78d2084071258248c1d5a65bf4e2125b/14525266917.pdfIn PDF document text
- http://isagenixmakessense.com/ckfinder/userfiles/files/94637370405.pdfIn PDF document text
- https://inprovitmexico.com/ckfinder/userfiles/files/75675236538.pdfIn PDF document text
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/371163147.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/sumosazedisep.pdfIn PDF document text
- http://ecohouse-lab.de/userfiles/file/gabosogodelezufelavuj.pdfIn PDF document text
- https://rubfila.in/files/file/nixipudej.pdfIn PDF document text
- http://3dtechgroup.com/uploads/image/files/8227212527.pdfIn PDF document text
- http://jiangsutravel.kr/userfiles/files/20210912_001727.pdfIn PDF document text
- http://studiovalecchi.it/userfiles/files/vefilonanifozur.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=wrong+turn+2003+full+movie+downloadPDF 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_off0000dec3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEC3 | 17256 bytes |
SHA-256: 710a5db2e4325cc03d5cceba8feeb1db8d438564217838038554f28a58b0028b |
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font_01_sfnt_off00010b8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B8C | 11188 bytes |
SHA-256: 211b9e1ed223cb0eac9cc72e256b71a2463d39a64591b90d340c5260ab9d6ff8 |
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font_02_sfnt_off000125a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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