MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF that contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF-specific heuristics related to URI and link farms supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.sesc-am.com.br/Selecao/ckfinder/files/temewufozovurarowewo.pdf In PDF document text
- https://ukmalayalamnews.com/userfiles/file/sipixa.pdfIn PDF document text
- https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/35840081975.pdfIn PDF document text
- http://marcobernini.it/userfiles/files/lizufupitenaxosivat.pdfIn PDF document text
- http://hansungid.com/userfiles/file/tufopekelekejetipanu.pdfIn PDF document text
- http://colorfulmedia.de/fotki/fotki/file/79959679615.pdfIn PDF document text
- http://mn-print.ru/ckfinder/userfiles/files/zanelatux.pdfIn PDF document text
- https://dongphuchuytai.com/upload/files/9139016674.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ihvr038hj8q9gu03et9m85vt57/21157439547.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161359f2845c3f---jabebebizopubiwelekafo.pdfIn PDF document text
- https://viscom.bg/uploads/wysiwyg/files/sagezizuvopepusenoz.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/fapikelibasivoneven.pdfIn PDF document text
- http://ingore.cn/upload/files/8932445647.pdfIn PDF document text
- http://hasomedia.com/userfiles/file/41744056397.pdfIn PDF document text
- http://18554080.com/userfiles/file/posabikitosevuvusife.pdfIn PDF document text
- http://rurisnet.org/images/file/fidugitotilepejuvoresano.pdfIn PDF document text
- http://detikakdeti.ru/img/file/67531821629.pdfIn PDF document text
- https://skinrepublic.vn/webroot/img/files/fibokonukemoxof.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/d0e26e77738d58ce171aa86fd8e7df7d/segude.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16131f4af69c5a---mobipovivix.pdfIn PDF document text
- https://soechi.net/userfiles/file/94028498425.pdfIn PDF document text
- http://erdbau-rauch.at/24511505525.pdfIn PDF document text
- http://waterlootour.com/FileData/ckfinder/files/20210902_A71D4AFC0CCAA2AD.pdfIn PDF document text
- http://cartopack.be/Images/file/59562280370.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=i+like+u+quotesPDF 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_off0000d39c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD39C | 17948 bytes |
SHA-256: dd7f43e9a771176fd15e49befbf2dc3925aee9e4cbe8c65ed6fad44722e42f6a |
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font_01_sfnt_off00010201.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10201 | 10024 bytes |
SHA-256: 7f0c849f54e1cfbb9adf004d4051e3b77f5db8b59b7caada5fc6062a08dcc8ff |
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font_02_sfnt_off00011861.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11861 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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