MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to compromised websites or disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The ML classifier strongly indicated maliciousness, and the heuristics point to a link farm strategy rather than direct exploitation within the PDF itself.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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://garglob.ru/uplcv?utm_term=how+to+clear+cache+in+chrome+mobile PDF link annotation
- https://tuinvandecruys.be/file/wugulotu.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-3/20210903033833961986.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5408baf7c---86136888250.pdfIn PDF document text
- http://oecschool.com/userfiles/file/42649295067.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/golasimib.pdfIn PDF document text
- https://webmanagement.colortown.ro/images/file/gezaxurovipoge.pdfIn PDF document text
- http://ossokahve.com/upload/file/11596138887.pdfIn PDF document text
- http://studiopetrilli.it/userfiles/files/11378075564.pdfIn PDF document text
- https://vinaconexmec.vn/uploads/news_file/34607495479.pdfIn PDF document text
- http://sinhorelli.com/userfiles/file/wazepod.pdfIn PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/70126549120.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/fe201f8c830ef735868f3dabfe63c264/vamoxirobupunaropisof.pdfIn PDF document text
- http://ladispensadicampagna.it/uploads/assets/file/boxotadajozosiwamoxi.pdfIn PDF document text
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/daveki.pdfIn PDF document text
- http://valdhans.cz/userfiles/file/26000602181.pdfIn PDF document text
- https://amt-alarmy.pl/userfiles/file/55069004446.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210912011110622.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16143af62c3127---mubatuwovasurixekanogevi.pdfIn PDF document text
- http://domosplast.hu/files/file/62588338008.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/39665966048.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161393c4bab58f---77646390109.pdfIn PDF document text
- http://ettermanenterprises.com/ckfinder/userfiles/files/kovonalolotuwisiz.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/11730974485.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/85de7aba75c36a8dd4f67c808b9bf9b6/73653039734.pdfIn 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://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_off0000e016.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE016 | 10544 bytes |
SHA-256: 832d2f8678e2daeec1a5fa9f5019647b4201267181dbbff975675b99e4a8063a |
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font_01_sfnt_off0000f7e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ff8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF8 | 16984 bytes |
SHA-256: f41de0cb1d7afeeb1154703112c7efeb3e1ae8a8dbbc40cbc176b172344a2842 |
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