MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, and it contains embedded JavaScript. It also exhibits characteristics of a link farm, with numerous external URIs pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. The presence of JavaScript indicates an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/c76c853fb96f1c4516eff21cde87c1bb/52011269807.pdf In PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/tcrl0u4qq3u8jvfqhd5cjomf89/94427607657.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a371468f156---3047461959.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606d93b3cf52f---jidodut.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/welegamowojafafonolatubu.pdfIn PDF document text
- http://ecohort.com/userfiles/files/74643240471.pdfIn PDF document text
- http://ahchala.com/img/file/mojavejakebelesim.pdfIn PDF document text
- https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/venotamijijobowo.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/d5050257153a7516f7da8b6647ad6c9a/74910194574.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/vanob.pdfIn PDF document text
- http://0vote.com/ckfinder/files/59408432392.pdfIn PDF document text
- http://romovi.net/sgi_userfiles/userfiles/files/62463824747.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bee0552513b---29965410492.pdfIn PDF document text
- https://kodcomputers.ro/2664/uploads/58477594698.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608888562b758---kitebazelabap.pdfIn PDF document text
- https://bcbc3399.com/upload/files/webuwimilarisuzuwav.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/9p80tfnut6bsnfn8grk4o2b07o/detiguwuvilijopomatonem.pdfIn PDF document text
- http://kesherisrael.com/uploadEditor/files/23434582505.pdfIn PDF document text
- https://otoform.com/upload/ckfinder/files/fubebowuditutafo.pdfIn PDF document text
- https://tinhhoaxanh.vn/userfiles/file/divetefexosozerisigos.pdfIn PDF document text
- http://sacoorhealth.pt/site/upload/file/dotejewizoverufazarukode.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efd731b8991---sekuruwexixolixonize.pdfIn PDF document text
- http://yasaitogo.com/uploads/files/29515482117.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/52933190031.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=music+activities+for+preschoolers+pdfPDF 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_off0000d7b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCB | 10772 bytes |
SHA-256: 61e741d620365e032a3962c922e2e9521918534c646904fb557261b6cd42dc5c |
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font_02_sfnt_off000108bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108BD | 16556 bytes |
SHA-256: e5aa3c89673ac02209244f8bf0f5c868018bfd20e500d39f5128c0ba218fc98c |
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