MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs that point to a link farm, a common tactic for distributing phishing content or further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically identifies this pattern, suggesting the PDF's primary purpose is to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://kdsonline.org/userfiles/file/77837156551.pdf In PDF document text
- http://www.focitabor.hu/userfiles/file/97053144813.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613a221098030---94479650275.pdfIn PDF document text
- http://kuppersbusch.hu/userfiles/files/kodukidiz.pdfIn PDF document text
- https://fitness-sport.it/userfiles/file/zomedijezufumowib.pdfIn PDF document text
- http://dokturmice.com/ckfinder/userfiles/files/beworebawixep.pdfIn PDF document text
- http://elitk.ru/_files/wasivedazofupapijivu.pdfIn PDF document text
- http://matchonusa.com/uploads/files/96122687945.pdfIn PDF document text
- http://gyuco.com/uploadfile/files/20210914_111840.pdfIn PDF document text
- https://matfreklam.com/calisma2/files/uploads/lumadizow.pdfIn PDF document text
- http://sjhrz.com/images/upload/File/tawetaxojufunukudewibavi.pdfIn PDF document text
- http://saiprogetti.net/userfiles/files/pamojajosavevisume.pdfIn PDF document text
- http://nissanotogovap.vn/uploads/images/files/bomolut.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/44572720649.pdfIn PDF document text
- https://thuaphatlaihoanghuy.com/uploads/files/vumafewarekolu.pdfIn PDF document text
- http://cen7dias.es/userfiles/files/88031896490.pdfIn PDF document text
- https://biodez.lt/i/File/39946114645.pdfIn PDF document text
- http://mayepnuocmia.vn/data/ckfinder/files/luxoxosap.pdfIn PDF document text
- http://ulrike-mayer.de/userfiles/files/nawiwomerebeju.pdfIn PDF document text
- http://fine-trading-knotwork.com/uploads/media/54232887308.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///lomozabidilomovitomexup.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/bonozipemidubazaduto.pdfIn PDF document text
- https://vnjhanoi.com/upload/files/lofota.pdfIn PDF document text
- https://aptitudeclass.com/ckfinder/userfiles/files/49591787525.pdfIn PDF document text
- https://orig-shop-gsm.ro/ckfinder/userfiles/files/1127708734.pdfIn PDF document text
- http://5lovestartw.com/CKEdit/upload/files/jexepojorosanopogikob.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=the+adventure+of+charles+augustus+milverton+pdfPDF 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_off0000b348.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB348 | 16752 bytes |
SHA-256: 227605b01ad9d9afda321ea130efba954841f6b6da47542a7cac97dc60ab4f80 |
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font_01_sfnt_off0000ddcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDCD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f5e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5E4 | 11196 bytes |
SHA-256: 0d9826b82aa087c15141ea699e94257dc12eb99555840d63a2497dd420d2eb92 |
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