MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs that point to compromised websites, many of which are WordPress sites utilizing the 'super-forms' plugin for file uploads. These links likely serve as a link farm to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or trojan distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/92gjdqa3q2l77tgvln62vr6391/velegugowukar.pdf In PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/nnkiqeev1n87r8884irmljdhb2/rijulofeduzamasarezemid.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/fuwisoja.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/manuwiwegevatinaladamu.pdfIn PDF document text
- http://soupworld.de/upload/file/69874697924.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/40bg2lhkcg3p7k5ljn0r2sl5vm/17660200299.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160902ec232b64---51565538358.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/affc60e7f5ea59ca8a3e09befe3246bb/8682899357.pdfIn PDF document text
- http://xetaihyundai.net/upload/files/zuvopafisamebajelojinomiv.pdfIn PDF document text
- http://unternehmensberatung-hegenbarth.de/userfiles/file/81698308926.pdfIn PDF document text
- http://crimesla.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/54741080350.pdfIn PDF document text
- https://genegurumiraclehealer.com/userfiles/file/47793061382.pdfIn PDF document text
- http://www.multigacos.com/admin/uploaded/fck/file/bekolaviwox.pdfIn PDF document text
- https://istanajp2.com/contents//files/65320983252.pdfIn PDF document text
- https://designclarf.it/file/20946776871.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a66b753df15---jedota.pdfIn PDF document text
- http://adams-gold.ru/archive/image/file/72122698884.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/hj1r0kr3dfc6qh0906td7b6n9o/41392652421.pdfIn PDF document text
- http://okna-kursk.ru/page_edit/_samples/userfiles/files/sisixafowokoga.pdfIn PDF document text
- http://uptownchantilly.com/uploads/files/jevesizarefilifinunaweji.pdfIn PDF document text
- https://1877painters.com/FCKeditor/file/91219396637.pdfIn PDF document text
- http://emanuelarombiarchitetto.eu/userfiles/files/52709210676.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/0fded530a15516e538065e429447e3f6/kidiz.pdfIn PDF document text
- https://vanchuyenduongsat.vn/upload/files/40771718579.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=how+does+snap+score+go+upPDF 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_off0000f44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44B | 17352 bytes |
SHA-256: 32f10492d9bad3b51765318a95a34c2aabf444443a39177bbb68bb55ca4d8251 |
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font_01_sfnt_off00012106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12106 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001391d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1391D | 10628 bytes |
SHA-256: 0f9eb5d7937e675ef8123271199f0020a1e1ee2b169e36dca711edc4104324d2 |
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