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://drafthe.ru/uplcv?utm_term=hello+neighbor+alpha+2+para+android PDF link annotation
- http://nowator-zpu.pl/userfiles/file/gemegaxamepuxumog.pdfIn PDF document text
- http://surtek.biz/image/files/20150115_111001.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/09835b1868acbe47f0a1810de31543cc/53749087985.pdfIn PDF document text
- https://deltagroup.bg/uploads/file/4336214523.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e126dcd15---zemetozokeparuzabiletozi.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607c76adc5240---91546511737.pdfIn PDF document text
- http://www.biotanika.pl/upload/file/gazakubupukomejewozesub.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/libezisokisofanu.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cdfa261660---8882450993.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/052ce72bf6c7916a71e1181733937a1d/74485072455.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/ob5ufb86iarsntcr43pfuhpfl6/jatajufidovafanadonafut.pdfIn PDF document text
- http://kasargod.net/uploads/file/naforubivi.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/i5ofqs8rhimucnio6t8188r35c/rakarufesijenuraxojazega.pdfIn PDF document text
- http://grodgolf.com/clients/f/fd/fd83fa7079552abb47853a85229f74c1/File/87337693787.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/1ea4651e38457bc486f7e58083192fb5/toxuxogaf.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/724bcibibaoa7jdbihvsahefrh/vetimotetig.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/68368743555.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/1e96ac4862725ccee4554fd0ab26c795/tijuboxa.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_off0000d41e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD41E | 5276 bytes |
SHA-256: 626d6d2c9c263af841f79b79218d332991d9b17caa931ff63e69eb0610a2083e |
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font_01_sfnt_off0000e5fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5FB | 10416 bytes |
SHA-256: cd0fcf758ac20e508a95635dfbea751196ba96e4016459fd99a58e9a0a253f5f |
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