MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous external links, with several pointing to potentially disposable domains and one specifically flagged as a link farm. The PDF_RANDOM_URL_LINK heuristic indicates a link to an algorithmically-generated URL, suggesting an attempt to evade detection. While no scripts were explicitly extracted, the nature of the links and the PDF structure strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://rideco.hu/upload/file/8831589135.pdf In PDF document text
- http://clinicaveterinariacittadivignola.com/userfiles/files/xibasemamufedomu.pdfIn PDF document text
- http://byecook.com/ckupload/files/34324610329.pdfIn PDF document text
- https://italvaping.com/file/pelesosoriwapezow.pdfIn PDF document text
- http://rzn-house.ru/upload/file/46833211449.pdfIn PDF document text
- http://perfectionistpaintingnj.com/ckfinder/userfiles/files/83540635009.pdfIn PDF document text
- http://invismortgagebroker.com/images/file/kefedafafuziluzilemexefa.pdfIn PDF document text
- https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/31871712028.pdfIn PDF document text
- https://granitabrasive.hu/editor_up/6233545488.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/80836166763.pdfIn PDF document text
- http://intproplaw.com/admin/uploads/file/59824320075.pdfIn PDF document text
- http://hndgyl.com/v15/Upload/file/202196163463374.pdfIn PDF document text
- http://uitvaartverzorgingsindex.nl/images/uploads/vumoguvatikavelonisa.pdfIn PDF document text
- http://geose.ru/userfiles/file/kemawisi.pdfIn PDF document text
- https://agmatbaa.com/upload/files/susazu.pdfIn PDF document text
- http://lightofislamonair.org/uploads/files/52462846958.pdfIn PDF document text
- https://foodvellythailand.com/upload/files/muzeri.pdfIn PDF document text
- https://francoisdaulte.com/ckfinder/userfiles/files/javovafuwikularetaguworas.pdfIn PDF document text
- http://trumoi-khutrung.com/upload/files/21131651724.pdfIn PDF document text
- http://ehoron21.mn/uploads/files/79713273108.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407e6a0733b---wulemu.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/limud.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/6681127371.pdfIn PDF document text
- http://pmke.cz/pictures/files/86773039197.pdfIn PDF document text
- http://keitbg.com/images/files/fogije.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=cara+kalibrasi+baterai+hp+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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ae91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE91 | 16420 bytes |
SHA-256: 166a71cf1e8300efedec78a06a5c9e5ed2f0e98a6ff9d88201df30f59785bfe0 |
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font_01_sfnt_off0000d817.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD817 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f02e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02E | 10752 bytes |
SHA-256: 3a699ee92ecdb52c05bad5306a943459b0d515b02e23045f36f33b1e99c73d1a |
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