MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting it functions as a link farm. The primary purpose appears to be directing users to potentially malicious content or phishing sites, leveraging the 'Spearphishing Attachment' technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 https://irlanc.ru/uplcv?utm_term=hippa+in+the+workplace
- http://cs-web-design.de/ablage/userfiles/files/96816065857.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c93c1c352f5---8355707700.pdf
- http://zhxndl.com/uploadfiles/files/55207793873.pdf
- http://ct-tci.com/cttax/userfiles/files/93218741324.pdf
- http://blpest.com/UserFiles/file/77646431417.pdf
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/5lmlg63vr5p2cirvct7np4ih5v/93639379681.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/4864314104049434f6273a0de99cd67a/kakip.pdf
- https://dalnoboy.com/data/filestorage/upload/files/tegiganuxovamemadopefato.pdf
- http://ambulatorioveterinariocigliano.com/userfiles/files/32984709818.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b216cfe53b1---78097671899.pdf
- http://technestudio.eu/userfiles/files/kipoladaxopor.pdf
- http://chataphan.com/file_media/file_image/file/4240719561.pdf
- http://reutlinger.pl/userfiles/file/73331748031.pdf
- https://moderator.lt/components/com_mijoshop/opencart/image/data/files/50934515654.pdf
- http://1utilaje.ro/mm/file/85791403210.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ce049ebc7---43779694728.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd7a7ea8c7---80769654469.pdf
- https://urbanlivin.lu/userfiles/files/14044236011.pdf
- http://xn----dtbhwhggdaoqfh3d.xn--p1ai/media/file/pidofagurukakav.pdf
- http://ciarajewellery.com/editor_upload/file/xedofulawogotavalivodagux.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160aa74af23ed6---kajugudopofuxekesuvopuk.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16094146bbf832---60956099367.pdf
- https://rintrans.com/files/vepaxivetigakeg.pdf
- 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_off0000baf2.bin6eafbd0ac424fe97e2129eac0bb96373514b8d3a252613a07c8bae614c6cf188 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAF2 | 16364 bytes |
font_01_sfnt_off0000e4c5.bin7b2a4fc54381837da29f1648c9907d5a0572d5726a507fc4c3bec5c858fc0f34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C5 | 10472 bytes |
font_02_sfnt_off0000fc83.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC83 | 16792 bytes |
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