MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://wastran.ru/uplcv?utm_term=chandramukhi+full+movie+free+download PDF link annotation
- http://anhuifan.com/upload_fck/file/2021-5-14/20210514075523784764.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fca4045a4e---xusonaweb.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076c968b3b26---gotezafis.pdfIn PDF document text
- http://www.urbanwaterways.info/files/44578229360.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/5130cea71e30c6c59cbe6b423d768dad/31509073285.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/rgdlimdec6j2tlm00rgpcult2m/62285979486.pdfIn PDF document text
- http://amoy-art.com/Upload/file/93463697755.pdfIn PDF document text
- https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/fc60f5e008e235a55d324c3300c40577/8286406700.pdfIn PDF document text
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160999a8035026---vumufexurubopelel.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/59749833405.pdfIn PDF document text
- http://movementlab.dk/userfiles/file/469515835.pdfIn PDF document text
- http://xn--49s538bo8ux8c.net/userfiles/file/87744172544.pdfIn PDF document text
- http://netinflux.net/userfiles/file/liviwigoxutovaruva.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070725a0ecdc---femivigitibiwibu.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0df35480f---41839884912.pdfIn PDF document text
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/3980fe9a4bb1df625d63916150b874b4/gamolemoxeborokutopu.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/0f4c13d2648e1f34b3a6962076b7f3ac/65687376576.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_off0000faa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAA1 | 5088 bytes |
SHA-256: da4983a2e8fa5c8c4cc34b36b7710bfa7dc42c66aabf1ed6da8015ac84901ea9 |
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font_01_sfnt_off00010bd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BD5 | 10912 bytes |
SHA-256: 8bfd1c98791f386f0b65b2e6cc9ee8a979cbe1e77f64b22b0344b3c0a997852e |
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