MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to external resources, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malicious content. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://jljemc.com/upload/files/92493310062.pdf In PDF document text
- http://asiadomainstore.com/userfiles/file/didivubix.pdfIn PDF document text
- http://agavietnam.com/img/files/falewevulex.pdfIn PDF document text
- https://itracmediav5.com/ckfinder/userfiles/files/3064134155.pdfIn PDF document text
- http://ddservice-bmw.pl/userfiles/file/zofol.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613319f14e487---58447569951.pdfIn PDF document text
- http://totoumi.jp/upload/file/30810635713.pdfIn PDF document text
- http://5percent-design-action.com/upload/users/files/31509060595.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/xefije.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/tawepalanuzidudixigi.pdfIn PDF document text
- https://eclearusa.com/images/file/waropirajawidaf.pdfIn PDF document text
- http://jadever.vn/Images_upload/files/sadow.pdfIn PDF document text
- https://trungtammatnamviet.vn/upload/files/75986938815.pdfIn PDF document text
- https://xn--80ag1a2a.xn--p1ai/files/file/zipatofi.pdfIn PDF document text
- http://xn--9i1b14lwsg1seumdzsx.com/upload/fckeditor/file/guvemewamuxe.pdfIn PDF document text
- http://lso-msm.com/userfiles/file/pepizadoresimujini.pdfIn PDF document text
- http://instalater-macecek.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/28443279278.pdfIn PDF document text
- http://miroslaws.com/ckfinder/userfiles/files/nufulavu.pdfIn PDF document text
- http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/puwif.pdfIn PDF document text
- http://forter.vn/hinhanh/file/75033394291.pdfIn PDF document text
- http://infinity8talents.com/userfiles/file/bugututu.pdfIn PDF document text
- http://artattack-concerts.de/files/file/97646243829.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=escape+room+full+movie+downloadPDF 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_off0000e6b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fecd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECD | 10916 bytes |
SHA-256: f26fa10e5edff393d9b44fa928ea9cc0be2af59e5f1ebfa6488849dd6e9c38e8 |
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font_02_sfnt_off00011818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11818 | 17956 bytes |
SHA-256: 6fe65b077f460c9086572cc8de82b83dac7039d00fad3f4fc3b84fac675eeaf8 |
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