MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. Static analysis revealed numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to lead users to malicious content. The document body was unreadable, but the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nomylo.ru/uplcv?utm_term=spelling+books+for+year+5 PDF link annotation
- http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/roradumafasaponevewam.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ed2647bdb---lazenepub.pdfIn PDF document text
- https://dp-engineers.com/admin/userfiles/file/movoxizokigixajibiwi.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cabc4a98730---zajeso.pdfIn PDF document text
- http://tatishev.ru/admin/ckfinder/userfiles/files/xixore.pdfIn PDF document text
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608624fad3f27---bezotamabilipot.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1dc910470---felojiposos.pdfIn PDF document text
- http://muslimofwestbengal.com/mwb/editor_upload/files/29988887728.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/ij3gdbld08ukb57ha277msltr3/7379646794.pdfIn PDF document text
- https://dansobentre.net/uploads/file/82325687747.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/75b31rko23l8eooaoqlet3iee2/85346326961.pdfIn PDF document text
- http://anhopphat.com/uploads/files/varunarexamuzeze.pdfIn PDF document text
- https://warungmimpishio.com/contents//files/sujeko.pdfIn PDF document text
- http://freehajjandumrah.com/admin/admin/uploadfiles/file/rawixadevego.pdfIn PDF document text
- http://esebtekstil.com/resimler/files/gopujazorexapibopimoza.pdfIn PDF document text
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/eql5q2i0lv334m5p9ck0p2m1o7/48972006494.pdfIn PDF document text
- https://przyklejki.pl/userfiles/22359077914.pdfIn PDF document text
- http://overtonnation.com/clients/f/f9/f97855507a39dfa58978186db9bff07a/File/75247255025.pdfIn PDF document text
- https://digireg.it/upload/60991272561.pdfIn PDF document text
- http://status.cz/UserFiles/File/60947988753.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/bivig.pdfIn PDF document text
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/i7s68ts574nkj42pf35l6s6d41/12547378823.pdfIn PDF document text
- http://inannamsao.com/uploads/files/67823919130.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160741269e56b9---setapozetukufitigalavifoj.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_off00010e5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E5A | 17556 bytes |
SHA-256: db8d911554ef476c8a94350336aca89d2acd530ccd0b1e48529cec7744ca8486 |
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font_01_sfnt_off00013c59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C59 | 10992 bytes |
SHA-256: 25cc0e73591038386fa7454ca15e01ee44181119b59fd92f82f811388f1fbea8 |
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font_02_sfnt_off000155cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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