MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external websites, many of which are hosted on compromised or disposable domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly indicate a malicious intent to redirect users to potentially harmful content. The ML classifier and ClamAV detection further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://craft-personal.de/userfiles/file/wurewiju.pdf In PDF document text
- http://kolesa.sk/files/52898476929.pdfIn PDF document text
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141c507922a9---kadujibirigurunogawovegi.pdfIn PDF document text
- http://aluminial.pnh.pt/js/ckfinder/userfiles/files/wabukupalidozoditugixem.pdfIn PDF document text
- https://lingchuanfloor.com/app/webroot/userfiles/files/92508912575.pdfIn PDF document text
- http://sieuthihatgiong.vn/webroot/img/files/relotovosavapev.pdfIn PDF document text
- http://potlista.com/file/files/kaxit.pdfIn PDF document text
- http://tysons-cafe.com/uploads/files/razimoxut.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/631c28df027da4569f93cb16dc55f03c/40565385343.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/bofubibepivisivepozifop.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/korafevoluxasulu.pdfIn PDF document text
- http://salamino.pl/userfiles/file/54591209823.pdfIn PDF document text
- http://rheinmotel.com/userfiles/file/89135320371.pdfIn PDF document text
- http://togclick.com/media/userFckfiles/file/wawilofeni.pdfIn PDF document text
- http://stihoplet.by/upload/editor/files/42447590335.pdfIn PDF document text
- http://polletnv.be/uploads/files/6659081099.pdfIn PDF document text
- https://ip-pharma.net/data/files/legifu.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb7c7e0ecf---durab.pdfIn PDF document text
- http://epoch-making.jp/js/upload/files/1349420098.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/2c2e641584ac576c291294dda59f908f/tugigipavevototixisowobev.pdfIn PDF document text
- http://thomas-zigon.de/images/file/89888065009.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=best+spam+blocker+app+for+androidPDF 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_off0000b56c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB56C | 11064 bytes |
SHA-256: cb2a4f84aa87f050221115446ad79f5579b4b1c364c451c018cb9be10b3d6e5b |
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font_01_sfnt_off0000cefc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEFC | 18412 bytes |
SHA-256: f4462de4246c05421d5b6795a2deb82e4d1d7824883f1c3186379f3a58e72497 |
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font_02_sfnt_off0000fea0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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