MALICIOUS
164
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. It contains a "Print protected pdf" lure, directing users to a link farm hosted on multiple compromised WordPress sites and disposable domains. The primary URL observed is https://inwebjor.ru/uplcv?utm_term=print+protected+pdf, which likely serves as a redirector to further malicious content. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://inwebjor.ru/uplcv?utm_term=print+protected+pdf PDF link annotation
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5b0639c16---18322851414.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c73ca92a6---46232268676.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b99deaf09f8---88129436137.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/4353667854.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c46d8d5b047---tunobur.pdfIn PDF document text
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/052e3e53a1e904198c73915ee9386536/73719883108.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078b97ed4032---nosale.pdfIn PDF document text
- http://chinahongji.com/d/files/nebipuzigubobulisa.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/c8cef076932fbabb789f61df3e860f5f/14480963475.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/b36ee5e65d98018e443546f0c846c751/gesinofapuximuvadozep.pdfIn PDF document text
- http://pulsarvn.com/media/ftp/file/87757556712.pdfIn PDF document text
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1fad3b17f---72527067754.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/dibufenetepux.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/51859361913.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e55c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE55C | 4516 bytes |
SHA-256: 9dbaf5989ef72118758510c43e7e26e3ccf76bd11ce238ef984626d054c7782e |
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font_01_sfnt_off0000f4b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B8 | 11348 bytes |
SHA-256: 88ca9560c6f41e036068e4ad51b6b1c8e0f2cdefdae8dcda3b6cda95f188c5a3 |
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font_02_sfnt_off00011b2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B2C | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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