MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://kalikraft.com/images/file/45056588060.pdf In PDF document text
- https://nls.vn/upload/files/81773399773.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/u54po11sj5jidvov2ma91mflq6/66318509781.pdfIn PDF document text
- http://sualpturizm.com/userfiles/file/bemusiramujejamuki.pdfIn PDF document text
- http://tingchucontrol.com/Uploadfiles/files/dizekow.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/9896601933.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147ed8b5e004---39836334246.pdfIn PDF document text
- https://es21sys.com/userfiles/file/57992027629.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/ragijowazijedesatazuv.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/a919b6b5d8509dd06d8b8837ff4aaf36/75569687563.pdfIn PDF document text
- https://soudurelausiere.ca/upload/editor/file/rizumar.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614de690ec44d---19560706083.pdfIn PDF document text
- http://sithome.com/upfiles/file/20210904165049.pdfIn PDF document text
- http://massimosusto.eu/userfiles/files/fopibibin.pdfIn PDF document text
- http://ideal-site.ru/userfiles/file/36259340145.pdfIn PDF document text
- http://csc0512.com/userfiles/file/20210923103725_apvmpj.pdfIn PDF document text
- http://0985028898.kad.tw/kads/ckfinder/userfiles/files/1311771290.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138b07d36f73---wotejopoxerevunifep.pdfIn PDF document text
- http://1night2daytour.com/ckupload/files/5092989199.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144852fa607a---tewuf.pdfIn PDF document text
- http://regalmotors-jp.com/js/upload/files/xetapaforebiro.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/97262723565.pdfIn PDF document text
- http://about-dogs.ru/upload/file/96261865665.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=paper+io+y8PDF 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_off0000bcfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d50d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD50D | 19564 bytes |
SHA-256: 590fc0892856a3e0c88b86f7a0206b1a14d159393b66ea0dc37685a2f66640c6 |
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font_02_sfnt_off000107ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107FF | 10152 bytes |
SHA-256: cad4bb3cea367582dff5eab19b74853943a99d8bdbaa29523997e21c42626bbc |
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