MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs that point to disposable hosting, suggesting a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically identifies this pattern. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://infrive.ru/uplcv?utm_term=how+can+i+use+my+firestick+without+the+remote PDF link annotation
- http://ensky-chemical.com/upload/files/nepolexudowesatude.pdfIn PDF document text
- http://aurora-c.jp/files/files/dumeramubunisitepuvojut.pdfIn PDF document text
- http://zhatuogz.com/uploadfile/file/keforizenabewam.pdfIn PDF document text
- http://dichvu12h.net/userfiles/file/ruguzugawutesosilax.pdfIn PDF document text
- http://samocvet.org/foto/ck/files/betipaxuboxitubekijufo.pdfIn PDF document text
- https://premiersuli.hu/files/files/vaviwimofesawexurajanijo.pdfIn PDF document text
- http://bbfederico2.net/userfiles/file/pipirakelu.pdfIn PDF document text
- http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/japetete.pdfIn PDF document text
- http://zentrumok.com/userfile/files/bixifetekefipataj.pdfIn PDF document text
- https://menokatea.com/ckfinder/userfiles/files/52064799452.pdfIn PDF document text
- https://strategieb2b.ca/userfiles/file/22525836124.pdfIn PDF document text
- http://buyyoutubesubscribers.com/ci/userfiles/files/rivajixawijanip.pdfIn PDF document text
- http://alexdisinfestazioni.com/userfiles/files/94339993473.pdfIn PDF document text
- https://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/tegosob.pdfIn PDF document text
- https://happy-playground.gr/uploads/_uploads/files/rifofutosuwowafox.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/103703196616a1221640cefe21bbab38/96324502139.pdfIn PDF document text
- https://kanalprofi.at/UserFiles/file/danimisigopasefupego.pdfIn PDF document text
- http://vimbark.sk/editor_uploads/files/22803234299.pdfIn PDF document text
- http://camonetinternational.com/files/file/42253378582.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/2021932014355364.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131587685709---xarukatuzatosogofag.pdfIn PDF document text
- https://haciendaloscipreses.cl/upload/file/wopazomir.pdfIn PDF document text
- http://eros-arena-reutlingen.de/eros/userfiles/file/bebasusiwip.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_off0000eb83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB83 | 18816 bytes |
SHA-256: 5a6553c029c34e4d948386de25c80aafa75b994ee21a3ada6bd034fd99d4f170 |
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font_01_sfnt_off00011cb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB6 | 10936 bytes |
SHA-256: 69950ddbcf05ae6b490930feda4ce89504a5d7664ecf3a8ff83db98f6e3568d8 |
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font_02_sfnt_off000135f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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