MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it functions as a link farm. The presence of numerous embedded URLs, many pointing to PDF files on various domains, suggests an attempt to distribute malicious content or facilitate phishing. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates a common tactic to bypass gateway scanning by instructing users to decrypt an archive, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://giovanninociti.com/userfiles/files/1932076482.pdf In PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161379f6742341---92000239745.pdfIn PDF document text
- http://elateridae.com/images/FCKeditor/file/93084396543.pdfIn PDF document text
- https://www.southdownscellars.co.uk/ckfinder/userfiles/files/luvonuxatat.pdfIn PDF document text
- http://carbontuning.ru/file/74879541119.pdfIn PDF document text
- http://www.ctnphrae.com/ckfinder/userfiles/files/54627305099.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/56060557948.pdfIn PDF document text
- http://leoclubmarsala.it/userfiles/files/zadejog.pdfIn PDF document text
- https://vietnam-pump.com/userfiles/file/rupupejejavako.pdfIn PDF document text
- http://cavusofis.com/images_upload/files/4132033187.pdfIn PDF document text
- https://asoriofrio.org/ckfinder/userfiles/files/nijijepelerekowofefanaw.pdfIn PDF document text
- https://mywayrtk.com/userfiles/file/62364907384.pdfIn PDF document text
- http://atya.eu/files/file/janeromavurabuju.pdfIn PDF document text
- http://tt-ural.su/admin/ckfinder/userfiles/files/fikojul.pdfIn PDF document text
- https://rachelrom.com/rescontent/file/65741392495.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c787ec2f6c---xetepasusurewonodox.pdfIn PDF document text
- http://www.39koratmachinery.com/file_upload/files/fodot.pdfIn PDF document text
- http://studiotecnicobonoli.com/userfiles/files/dibafemuxe.pdfIn PDF document text
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/74119590757.pdfIn PDF document text
- http://meyergarden.com/ckfinder/userfiles/files/83405865373.pdfIn PDF document text
- https://theptaynam.vn/upload/files/92384271932.pdfIn PDF document text
- http://risorsaterra.it/userfiles/files/xukuwirabavenazufob.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/48671839449.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=delete+temporary+internet+filesPDF 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_off0000dcee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f505.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF505 | 10636 bytes |
SHA-256: 27f5a9261227f1a9abf7681233aa63a93d6b04b8eff6644610545acb20ca5f69 |
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font_02_sfnt_off00010d53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D53 | 17648 bytes |
SHA-256: e066275de28d60d407e6b28918f0050ec945572f86ec428cb50fe6fb37bfa2e6 |
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