MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous links to compromised WordPress sites and other domains, suggesting it functions as a link farm for phishing or malware distribution. The embedded URLs, such as 'https://synerhu.ru/uplcv?utm_term=i+wish+you+happy+birthday+song+mp3', are likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 https://synerhu.ru/uplcv?utm_term=i+wish+you+happy+birthday+song+mp3 PDF link annotation
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfdb46466d---lodilumakize.pdfIn PDF document text
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/82831164617.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/2ac96f1e937d02eda3a60180bb2e3603/71528235500.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/2ee49a4909ba6b7de362c2cfd614a46e/podajap.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/20807205489.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b254deaeca9---96344109571.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b63c6e55fdf---66404693362.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f544371ff---11137729191.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/f4c999cd373761966eaa514c5ca2b1c9/44411834215.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/jazakizuko.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/d639a4c5e58e2d06bbfafe8f9b38f62e/85714894993.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160be466c2c6e5---48612023122.pdfIn PDF document text
- https://aashianarealty.com/file/nalemilimatofukepipezef.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c68bc97815a---wetedokomubolojogajasupi.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/a4f24571e13d262dc0862e2aea3920de/39846061013.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f241.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF241 | 5776 bytes |
SHA-256: a4c0b6099683fe2374b4b3edfc22d3e0738febba49874d56e6f025d06a1982c3 |
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font_01_sfnt_off000105d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105D3 | 10980 bytes |
SHA-256: 111cc3402acbfde153f737fc95b4ce618a5bc913634ea00762100fbe340d8a25 |
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