MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics, including a medium-severity rule indicating it's a link farm on disposable hosting. The numerous embedded URLs, many pointing to PDF files on various domains, support the conclusion that this document is part of a link farm. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest a malicious intent, likely related to SEO manipulation or distributing further malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' further reinforces the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 5
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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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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://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/28049665107.pdf In PDF document text
- http://coytex.net/ckfinder/userfiles/files/towupetavojupizo.pdfIn PDF document text
- http://chocoenglish.com/_UploadFile/Images/file/lejisebibibofiletave.pdfIn PDF document text
- http://bedrucken24.de/userfiles/file/26823597347.pdfIn PDF document text
- https://losungversorger.com/product/file/38464808750.pdfIn PDF document text
- http://orchid-daikanyama.com/userfiles/file/14302122440.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/zogumabepa.pdfIn PDF document text
- http://skolky.info/foto/images/file/3197315862.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16136bc00df0ec---68918995162.pdfIn PDF document text
- http://misr-consult.com/userfiles/file/40454304503.pdfIn PDF document text
- https://odlingfamily.com/userfiles/file/29671242195.pdfIn PDF document text
- http://www.urbanwaterways.info/files/51803520416.pdfIn PDF document text
- https://ladulceseguros.ar/noticias/fckeditor/file/76123743490.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/2q7v8paaovb3e45oe1a51meo0e/vasapubakixu.pdfIn PDF document text
- http://wakesup.org/userfiles/file/41460452816.pdfIn PDF document text
- http://sonsuadogo.org/Images_upload/files/24198371906.pdfIn PDF document text
- http://pzhjintai.com/upload/files/neberiketeku.pdfIn PDF document text
- http://dxczx.com/ckfinder/userfiles/files/20210906_021104.pdfIn PDF document text
- http://henseltech.cz/userfiles/file/37511633944.pdfIn PDF document text
- https://lifesmart.lifesmart.ro/ckfinder/userfiles/files/22659061959.pdfIn PDF document text
- https://olterus.org/contents/files/9181316716.pdfIn PDF document text
- http://telegid.tv/userfiles/file/patararivufutawopetexaw.pdfIn PDF document text
- https://rainbowprinter.com/app/webroot/files/file/zapajazusixaluged.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=championship+manager+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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA95 | 16148 bytes |
SHA-256: b17e3c388ca520c70044df51a505a8c8de3d1ca9b2e495c629779bc8d31aca59 |
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font_01_sfnt_off0000e01b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE01B | 1680 bytes |
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc |
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font_02_sfnt_off0000e813.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE813 | 23028 bytes |
SHA-256: 6dbda2727a2503b9ddae4d80c9a912ea8bee97353d5ebc103ea70c4ff925b656 |
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font_03_sfnt_off000121ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_04_sfnt_off000139d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139D1 | 10724 bytes |
SHA-256: 3b06677b8a96e7db37139109de0ff32f1a9fd14eebb523bafe627d92db4b16e7 |
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