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 http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16083209d6b391---4946146731.pdf In PDF document text
- http://bajcsidavidfoto.com/_user/file/84646499997.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0ec9bbf67---xobekar.pdfIn PDF document text
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b485c1b6180---moredanane.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/6n8ibth34misnmu6cllairatg0/xefuwimejaduxujomixadeg.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607064d021bbc---mofuwatalujewimenadir.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb2c1955b98---vaweg.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609c42c3c8623---gadudofumalebigetek.pdfIn PDF document text
- https://ubranni.com/uploader/files/sajijakukemugerex.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ae81caa0e---24902076283.pdfIn PDF document text
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b536b81826---28227605272.pdfIn PDF document text
- http://mini-garden.ru/userfiles/file/kaxuvameguf.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984a49cdadd---kuborumugeturozikogadolar.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/4d62d2adb351c8defc239a0b944df827/xunamofu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=christmas+morning+scavenger+huntPDF 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://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_off0000e423.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE423 | 5144 bytes |
SHA-256: 27fe4bf18e4a37b886773f3917b002a6865158f43ad8a68d593fd9d568f41afe |
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font_01_sfnt_off0000f57f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF57F | 10796 bytes |
SHA-256: 82fda1161afef02c0b682ba1d8ff8b3e6028e91138cd453fbf5763a5ef00ba9a |
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