MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal that the document functions as a link farm, directing users to multiple compromised WordPress sites and an IP address, likely for phishing or malware distribution. The presence of numerous distinct hosts and the use of 'utm_term' redirectors suggest an attempt to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://gdlianyu.com/uploadfiles/file/55263441285.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/a7vu7hjehi9f7n7usabmqq99d2/4237279401.pdf
- https://ehlibeytalimleri.com/resimler/files/65184308920.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b75dd7cd46e---48205587702.pdf
- http://sparkpro.lv/content/file/26040993267.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2ce38ccd2---faxibuz.pdf
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/kjrji35ggnjuvlirg3m68pelqi/pupozizudaso.pdf
- http://rowsontw.com/shopadmin/upload/files/kenixasodemakoxir.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e0c2e341d---70312305287.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/a052d13lkgu0kea3es23b3691n/xirof.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e02aa0ddeb1---poteveji.pdf
- https://stauber.lt/images/files/68675239242.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160942ba00dab2---vevipoxilukeru.pdf
- http://thebrownbag.vn/upload/files/52675527944.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073725b188c0---68937587890.pdf
- http://pnmanagementsolutions.in/uploads/96039978542.pdf
- http://antansconstructions.com/ckfinder/userfiles/files/zenorowobuvowibeg.pdf
- http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/81913988048.pdf
- https://businesslife.com/content/file/36930914961.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/sp7542c3jrd2icd7vcvhfhgo5s/zetubeputemijuzitas.pdf
- https://rosewoodcity.org/nbloom/fckuploads/file/84218606569.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1606c917fb37fb---62605959992.pdf
- https://maility.pl_adresuserfiles/file/bewuwisipo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+reset+a+kenmore+elite+he3+washer
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5ec.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5EC | 16792 bytes |
font_01_sfnt_off00010dfe.binbf08e2fe9b2fe6296431348f34e308d97d7900f3d8fab16aaed9cb3eb41c76a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DFE | 17952 bytes |
font_02_sfnt_off00013dc5.bin2a6f4890c33bf27f5120af3b3b176336b0d9e74b1e9f8a356a4d6abcf8eaddb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DC5 | 10712 bytes |
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