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 pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://irlanc.ru/uplcv?utm_term=snapseed+for+computer PDF link annotation
- https://xylemleads.com/userfiles/file/24775762147.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///wewuk.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132450563dae---turaxilezawodowigip.pdfIn PDF document text
- https://mekongtransport.com/upload/userfiles/files/zigatadobozavumo.pdfIn PDF document text
- http://congtyvima.com/images/Download/35491023660.pdfIn PDF document text
- http://kalkulacka-hypo.cz/userfiles/files/rutuvaluzozomazumamexarux.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/9b0c28425826238afc003af1906bfd54/14393475485.pdfIn PDF document text
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135045616b4b---tepewem.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372bdf568ac---jalitel.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16148bb608f87d---7679454574.pdfIn PDF document text
- http://www.ctnphrae.com/ckfinder/userfiles/files/mazupupowujepisuxigego.pdfIn PDF document text
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/ba9deb811e5794c9f11e10172796c2d2/86984794117.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16148945e0f50b---wapudimunelugilo.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/u547g3ldqef4l4nvnh808jh3r0/zoteguzi.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/7aac1b910bd2eb83f0becdb093a426d9/kumisajulopegasixike.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/jurosojekebasewuz.pdfIn PDF document text
- https://ooobelkom.ru/ckfinder/userfiles/files/73867559835.pdfIn PDF document text
- http://karcannakliyat.com/userfiles/file/tufisuvifazozumane.pdfIn PDF document text
- http://etenindex.nl/images/uploads/79569374196.pdfIn PDF document text
- http://mrukseo.pl/userfiles/file/soxali.pdfIn PDF document text
- https://www.khaosanpools.org/ckfinder/userfiles/files/36117078661.pdfIn PDF document text
- https://bankkartya.hu/js/ckfinder/userfiles/files/42499172234.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/xonuzigebebonume.pdfIn PDF document text
- https://tedesco.pl/userfiles/file/jalizoruxu.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_off0000bbd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBD6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d3e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E8 | 16016 bytes |
SHA-256: bb048b6ee7d98044db328c1ed2b7173ed48e13a5c364fbd192035fb3cd1cc7d8 |
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font_02_sfnt_off0000fcfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFB | 10820 bytes |
SHA-256: 7e9d080798bbd94e2574718d8611c3066e02713cef90930a7cdcaf01d5799b17 |
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