MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised WordPress upload storage, with many distinct hosts and a UTM term redirector, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an attempt to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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 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://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16080f52947e9b---jututorimisabapizimonuja.pdf In PDF document text
- http://slsnn.ru/content/files/97188723518.pdfIn PDF document text
- https://ksuskalology.com/images/file/laledelajavuxime.pdfIn PDF document text
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/1bes4ei8rok20kjpqoi6d06kbk/48481364854.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/7704144365.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160ce0f173d2fe---puzukojivabeve.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/d6a9cf2c89b32355e6cdbd7688579857/nekarilujafasa.pdfIn PDF document text
- http://cck-brno.cz/ckfinder/userfiles/files/44929011035.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/ea3c22e54bd9f44e95b9961ff15dddcb/sogotimujekobemakisam.pdfIn PDF document text
- http://citra.cl/userfiles/file/lekudujijekexudigo.pdfIn PDF document text
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/d58r69gni4f745fjmu7850me9m/50779968049.pdfIn PDF document text
- http://seabeachthailand.com/UserFiles/file/sivinuwutiwawo.pdfIn PDF document text
- http://remont-etalon.ru/upload/files/vatimosetibutimex.pdfIn PDF document text
- http://grupposcorcia.it/userfiles/files/fiwoxawiwuna.pdfIn PDF document text
- https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/52726897672.pdfIn PDF document text
- http://gyobel.it/public/file/36554364230.pdfIn PDF document text
- http://mtsskzy.com/userfiles/file/4621041952.pdfIn PDF document text
- http://nacyc.jp/Upload/file/jatusapefivevagolixojem.pdfIn PDF document text
- http://debsluxe.com/clients/1/17/174397649ed9f07baa8f9d9f48c72a4d/File/8123475965.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/ohrlekh7ljadrhe4hn5a3csbcf/43689336665.pdfIn PDF document text
- https://barcelonacentromedico.es/files/galeria/files/27863062920.pdfIn PDF document text
- https://www.gryf-wet.pl/ckfinder/userfiles/files/zulutatavonovumesi.pdfIn PDF document text
- https://pasarantogelsatu.com/contents//files/buvinagake.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/cbecd0cf8cc46bde0c1ea75f41b8100b/54729483122.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=libro+de+historia+tercer+grado+telesecundaria+volumen+1+contestadoPDF 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_off0000eac4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAC4 | 17952 bytes |
SHA-256: 96f0012bcb65dcffd8a0012f1a540c98d27db8b4bd78e46101941ad757ae2ea6 |
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font_01_sfnt_off00011825.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11825 | 11132 bytes |
SHA-256: 305997a6adcff848f0dcd12c154ccc96b17066dd44476541d65d334a40aeb4c9 |
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font_02_sfnt_off000131cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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