MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. Several heuristics indicate the presence of link farms pointing to compromised websites and potentially disposable hosting, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://felicitareonline.ro/ckfinder/userfiles/files/27629647692.pdf In PDF document text
- https://knurussian.kr/DATA/upload/files/202109101459249516.pdfIn PDF document text
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/8f34700d186bdaefcd016bdd2e8eac0e/44429314965.pdfIn PDF document text
- http://dylogistics.com/userData/board/file/54399942185.pdfIn PDF document text
- https://flour.co.uk/ckfinder/userfiles/files/52280433253.pdfIn PDF document text
- http://codienlanhminhquang.com/upload/files/buwawinuxabelarowuduxeb.pdfIn PDF document text
- https://cincia.ro/ckfinder/userfiles/files/donit.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a1472a2bd---luguluw.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/61063077640.pdfIn PDF document text
- https://sreekanakananda.com/ckfinder/userfiles/files/rekebivazuzo.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/12487079980.pdfIn PDF document text
- http://klaaswester.nl/img/file/kimemivabonineguvutamuru.pdfIn PDF document text
- http://e-cluny.cz/UserFiles/file/kigapidadasasu.pdfIn PDF document text
- http://reelproductionshd.com/userfiles/file/43593618624.pdfIn PDF document text
- http://coaching-scolaire.net/userfiles/file/dipapigipiludinapa.pdfIn PDF document text
- http://brava-ekb.ru/userfiles/file/lunojirabidifugusitam.pdfIn PDF document text
- http://ccsup.co.th/uploads/ckfinder/files/zojifevonuraxem.pdfIn PDF document text
- http://csc025.com/userfiles/file/20210903002514_b950uj.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613812047c7f3---mizumuzorazepagegexato.pdfIn PDF document text
- https://bdaudit.ro/userfiles/file/funomugoranubamibigig.pdfIn PDF document text
- http://insei.eu/userfiles/files/lumakimos.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210912213815.pdfIn PDF document text
- https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/jabujek.pdfIn PDF document text
- https://alsharqcc.com/userfiles/files/43031097929.pdfIn PDF document text
- http://www.sainteuphrasia.com/www/js/ckfinder/userfiles/files/duzuzapowazitatekosiv.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+cast+tablet+screen+to+tvPDF 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_off000116fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116FE | 10412 bytes |
SHA-256: c0cd75a2d148bcf92128a037d860c6e4024c46c90fab2a0813716ef137ad4f9b |
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font_01_sfnt_off00012eca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ECA | 17264 bytes |
SHA-256: 659ddbef29dea0c6a109ac1accce4949a03e2f3ffeb145361906ea3529c4b6cc |
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font_02_sfnt_off00015b9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B9B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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