MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute traffic or potentially host malicious content. ClamAV and an ML classifier flagged this PDF as malicious, specifically as a phishing trojan, supporting the assessment of a malicious link distribution pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://tries.cz/media/images/upload/file/lekiwumavoxuz.pdf In PDF document text
- https://businesslife.com/content/file/14223869689.pdfIn PDF document text
- http://rfaaa.com/UploadFile/file/20210916020046177.pdfIn PDF document text
- https://chsins.tw/uploads/files/202109180253121328.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142996071f49---gadan.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/gidepulapo.pdfIn PDF document text
- http://1utilaje.ro/mm/file/rabusemi.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131aa4cc733d---ledezawurejofowoleguzapa.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16143e7157c10e---dijawogejami.pdfIn PDF document text
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/suxabewapaxade.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210903_6D2AB40452C0C21D.pdfIn PDF document text
- https://istanajp.com/contents/files/55613080411.pdfIn PDF document text
- http://klawiatury-foliowe.pl/_data/file/78347091870.pdfIn PDF document text
- http://gainliving.com/upload/editor/file/92598456846.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/52522211504.pdfIn PDF document text
- https://ptogel1.com/contents/files/70546052613.pdfIn PDF document text
- http://pensionpoint.cz/userfiles/files/mopaketifugosu.pdfIn PDF document text
- http://movitecnic.com/ressource/site-image/files/3031322162.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/cfca6593d2c209a019af98c6bec1bb38/zibubuda.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d89e8c3183---ganudojemekokurozugix.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210914_0FBEE6D234BA7149.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=fortune+teller+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_off0000d7df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DF | 17100 bytes |
SHA-256: f6a05a1ad2bbf5c04c289e70437e51a66e63339d56e430e770a85ec33c0a2366 |
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font_01_sfnt_off00010427.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10427 | 10400 bytes |
SHA-256: 8184f413cb264b5120606069caff3d65d8b158652f1f0ae09db7c30b5bcb96ae |
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font_02_sfnt_off00011bba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BBA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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