MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, many pointing to compromised or disposable hosting domains, suggesting a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://photo-preiss.com/upload_files/files/figemavazaseronidi.pdf In PDF document text
- https://xn--psg-9lac.hu/files/files/26455346258.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161420931c4fa8---30834110167.pdfIn PDF document text
- http://alompar.hu/uploads/content_files/files/nelogulipifuw.pdfIn PDF document text
- http://www.gieskestukadoors.nl/ckfinder/files/files/40731424970.pdfIn PDF document text
- http://vietnam-intraco.com/webroot/img/files/7384256760.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/e6eabfb1bb2f9879e0f278e5a4af9c4f/92608757615.pdfIn PDF document text
- https://hoangvan.vn/wp-content/uploads/files/63453149004.pdfIn PDF document text
- http://open.ua/uploads/ckeditor/files/wuleradiku.pdfIn PDF document text
- https://prospr.fr/ckfinder/userfiles/files/8631500129.pdfIn PDF document text
- http://peter-crooks.com/userfiles/file/xodukuburuneronopo.pdfIn PDF document text
- http://imapbook.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/55812368652.pdfIn PDF document text
- http://grandwatergatehotel.com/upfile_hotel/files/simepotaxewesaxofejadov.pdfIn PDF document text
- http://proxima-design.cz/files/file/gipifoxamugepudil.pdfIn PDF document text
- http://betonkeritesek.eu/Content/files/66216710704.pdfIn PDF document text
- https://bucatariizidite.ro/printuri-fi/files/92524101744.pdfIn PDF document text
- http://alacarte-husum.de/userfiles/file/luwenatidumalebuvin.pdfIn PDF document text
- http://faradbox.pl/files/file/98352951011.pdfIn PDF document text
- http://www.hausman.eu/images/wyswig_images/file/44144032538.pdfIn PDF document text
- http://123flower.doweb.kr/upload/files/61983665826.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/18034d101d4a40dd7f078126288d5863/zajinizebibuvuzunit.pdfIn PDF document text
- https://deepex.hu/hirek/files/57327909495.pdfIn PDF document text
- http://www.eurosecurimed.com/ckfinder/userfiles/files/16809542317.pdfIn PDF document text
- http://gelateriacool.it/userfiles/files/72628714848.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+save+your+text+messages+to+your+computer+from+androidPDF 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_off0000b9c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9C5 | 19324 bytes |
SHA-256: 04633864800754040f21b8aa7cbc0d26cfc91462132279b2e2e75fd5c51a8a9f |
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font_01_sfnt_off0000eb4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB4E | 11376 bytes |
SHA-256: f4ca2973afc60e308f480c74b7b3ed49e609a180c8c91c552706729bb75b772e |
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font_02_sfnt_off000105f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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