MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and multiple external URIs, several of which point to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded JavaScript is likely used to redirect the user or download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://krakow4you.pl/krakow/files/79315543721.pdf In PDF document text
- http://lexen.ca/userfiles/files/64021134548.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16132b513b6f72---24548745025.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/rixiwuxosexigibipagulita.pdfIn PDF document text
- http://dailyliving.nl/ckfinder/userfiles/files/84734581821.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d4792a8c03---xepupisozafom.pdfIn PDF document text
- http://jjmcp.jp/userfiles/Image/file/tujife.pdfIn PDF document text
- http://nacyc.jp/Upload/file/76589793798.pdfIn PDF document text
- https://tavio.ru/files/file/zafopowemunawe.pdfIn PDF document text
- http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/rinawe.pdfIn PDF document text
- http://zehanbiopharma.com/upload/files/25732917562.pdfIn PDF document text
- http://yhbinternational.com/userfiles/file/xufudiwurusojewiju.pdfIn PDF document text
- https://knurussian.kr/DATA/upload/files/202109050731214383.pdfIn PDF document text
- https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/bolowatonabag.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/kdesjoe3nbdr3gv8bq1kuoidef/topulujigiluz.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/46515636538.pdfIn PDF document text
- http://talk200.com/admin/admin/uploadfiles/file/85496066364.pdfIn PDF document text
- https://mylin.in/ckeditor/ckfinder/userfiles/files/68442604506.pdfIn PDF document text
- http://szwygs.com/upload/gakevab.pdfIn PDF document text
- https://estudiowebcolombia.com/ckfinder/userfiles/files/wowajovax.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=berklee+music+theory+book+1+pdf+free+downloadPDF link annotation
- https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/89631970540.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_off0000afa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFA1 | 11524 bytes |
SHA-256: ebd6debf4431781a48d153a55f9f33e84ea25c25104430f12d2b91e86a8812a8 |
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font_01_sfnt_off0000cab3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e2c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2C5 | 15480 bytes |
SHA-256: 1e500da6ef01ac659fde61ab048988a785e09fde332bb4f937b6a756267273fb |
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