MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to numerous external URLs, many of which host other PDF files. This behavior is indicative of a phishing or malware distribution scheme, where the initial PDF serves as a lure to redirect users to malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://tktravel.shop/FileData/ckfinder/files/20210715_453BAB3005EC7869.pdf In PDF document text
- http://cayxaotamphan.net/userfiles/image/file/5532963462.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b1173d74c---butokufinarepafazofig.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b81c30bd16a---48142337770.pdfIn PDF document text
- http://dientrotiendathc.com/media/ftp/file/xewabebejakefa.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/18hgh3tieitennqkaf5chtkflv/6854381442.pdfIn PDF document text
- http://nirmalamathachurch.org/cms_uploads/image/file/53720888905.pdfIn PDF document text
- https://wagaskar.com/media/44980645177.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097010761c61---87575111354.pdfIn PDF document text
- http://sculecuacumulator.ro/app/webroot/files/userfiles/files/puwadibepamubazen.pdfIn PDF document text
- http://zulassungsservice4you.de/bilder/file/melifarivugiwusulixoku.pdfIn PDF document text
- http://otevrel.eu/ckfinder/userfiles/files/luwiruzubazovop.pdfIn PDF document text
- https://whitesal.com/data/images/file/6743_20210705151741.pdfIn PDF document text
- http://vipnjl.com/userfiles/files/31366716788.pdfIn PDF document text
- http://walkercombsfamilyreunion.com/clients/d/df/dfd517ab040340b2551da60fba195f5f/File/relalisuna.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160abf85ab53d6---padepefu.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090582a3a3bb---wugupojobeburapi.pdfIn PDF document text
- http://airfa.it/userfiles/file/sefobebudapexojinup.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/523d0141582943d513cba39953652fb5/filenibelaxamaralutiju.pdfIn PDF document text
- http://teresachild.com/upload/files/pizizowuza.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/oafcs1qrpnu7b1p9vsvk4bsjaq/63102403019.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc372c7900---56770555238.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c086ec5665---66109383081.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7ed8163781---94710630457.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=spider+web+likePDF 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_off0000e508.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE508 | 16528 bytes |
SHA-256: 4a3f0fd7ef450d51f8b1ea2826a888bd36b1fd0893aad5402c81c169677439b7 |
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font_01_sfnt_off00010fe4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE4 | 10128 bytes |
SHA-256: 470c2d5e7c16d7ec222c13ae09586c02fc725ff2117c82f95859b3cca9e0001f |
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font_02_sfnt_off0001265f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1265F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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