MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many hosted on compromised WordPress sites, suggesting a phishing or credential harvesting campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://chcial.ru/uplcv?utm_term=6000+seconds+to+hours PDF link annotation
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867451cc5fe---6105998991.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af6dfc84dd8---wonodufebudoxijejid.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/09a0aabe9a166ac4e5c984226857a80e/63357992537.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/513c529a63fff88e602a3b5daa6dad8d/47442285041.pdfIn PDF document text
- https://bliznacite.com/files/goxigobipifowibojazaxi.pdfIn PDF document text
- https://vinacomvietnam.vn/uploads/news_file/6351007426.pdfIn PDF document text
- http://topimmigrationlawyer.org/ckfinder/userfiles/files/sakebotaludabow.pdfIn PDF document text
- http://dlt-nkp.com/fileupload//file/60386785541.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/dajeseroxiporo.pdfIn PDF document text
- http://111-orte.de/testarea/cwsCMSlight/media/files/80501075465.pdfIn PDF document text
- http://okwmd.com/upload/fckeditor/file/90316407741.pdfIn PDF document text
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b93f19e98---kurumuvag.pdfIn PDF document text
- http://allg-gyn.ch/userfiles/file/79543042473.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093d0ac0209a---86578138575.pdfIn PDF document text
- https://mut-zur-veraenderung-hambuch.de/userfiles/file/gofamulaxoxel.pdfIn PDF document text
- https://tauthuy.vn/upload/files/47673008467.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a38e5178fe0---47444571161.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4b7f26c94---24149320195.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a716bae2998---6850914010.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b90052d516e---8968948208.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608495ce64631---zamarasagenapemelidexik.pdfIn PDF document text
- https://fiscalonline.eu/app/webroot/files/userfiles/files/20204884600.pdfIn PDF document text
- https://daxitrip.com/basefile/daxitripcom/files/88951706363.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160e5563eb5259---75653448649.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_off0000ef7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7B | 17052 bytes |
SHA-256: 8de7725fa2d2af060b8332208053c696fe3e3a6e9946ff8347b9d75257fce08c |
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font_01_sfnt_off00011be3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE3 | 10460 bytes |
SHA-256: 9db6d9de147459ce5c16b124ae1944f9b8924ebeaf78743ff226e24225787073 |
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font_02_sfnt_off00013391.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13391 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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