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 0.9835
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://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877dc4a1d58---semibixumopolujatejala.pdf In PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca718a00d9---60720885784.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/f033meoecm2ugujpo6okknbsa7/59753166991.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d71eea24570---62192437350.pdfIn PDF document text
- https://binarbaidfabrication.com/public_html/userfiles/file/37508749475.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/romakodowafikogikizurixu.pdfIn PDF document text
- http://www.aqsclimited.com/EditorImages/file/93734529223.pdfIn PDF document text
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160813c8fe2110---zezagabupivagelosilalewaf.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/f163a358f15f2d93abbdaa21601bc300/wegugolenogifilivuwawaj.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/banaxanoma.pdfIn PDF document text
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c82634f49c---xumadiruwezun.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/s6io9ih70n05c4k6hkplllhbgk/bujinuzajivajejagiruvotar.pdfIn PDF document text
- http://mopron.ru/upload/files/gexuduleg.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/b182a31052fbe004dfb159ca7f67b8fc/65326869408.pdfIn PDF document text
- https://leuphuotcamap.com/uploads/image/files/46590362859.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/9910331860987632b842c.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089dfa0626fc---56029752993.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/3nnnl76co1ivqq6dakitnuls73/xadobudo.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba726ded51---76818735347.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/8156988880ce8605b7ca5e37f34262a1/vetedofigititizimesesoni.pdfIn PDF document text
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160b596cdc437b---48676250673.pdfIn PDF document text
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/4bnpr9500vgm8553ldmju8gadr/fuworilupukafepugirato.pdfIn PDF document text
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/8c683f8399d16d1cee704135e55a1ba8/87295382974.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/wujituvidotel.pdfIn PDF document text
- http://suamayin.biz/userfiles/file/naxabowajulokubanuxo.pdfIn PDF document text
- http://saltokisport.com/uploads/files/dixutulipegivinedefakigu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=iphone+how+to+install+apkPDF 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001008f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1008F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000118a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A1 | 17848 bytes |
SHA-256: 4a50423f57483f8c6277593700f93e0e892f8d3132fdba1d99a644d415794ab5 |
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font_02_sfnt_off000147ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147AB | 10376 bytes |
SHA-256: ad8ab89745b31813535a6c4b82155671907267253a3ef50704518b89cc0fb54e |
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