MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, with one heuristic identifying it as a link farm on disposable hosting. The presence of PDF_URI and EMBEDDED_URL heuristics, along with the ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION firings, strongly suggests a phishing or malware distribution attempt via a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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://nesemlak.com/test/images/uploads/files/wigoxapitijojegal.pdf In PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/kaledeviwapepi.pdfIn PDF document text
- http://shiraz.sk/ckfinder/userfiles/files/4738447801.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/welawupawolisusuroba.pdfIn PDF document text
- http://tlumacz-francuskiego.pl/userfiles/file/welej.pdfIn PDF document text
- http://bsl-trans.ru/admin/ckfinder/userfiles/files/dakaludumibegaf.pdfIn PDF document text
- https://btcauction.vn/hinhanh/file/xutisiwagabakowekowigapi.pdfIn PDF document text
- https://szabobuszrendeles.hu/files/files/widazafolawiwizenom.pdfIn PDF document text
- https://interstudy.net/userfiles/file/64304536563.pdfIn PDF document text
- http://nail-free.com/ckfinder/userfiles/files/38152142360.pdfIn PDF document text
- https://factorysales.com/userfiles/files/30910276675.pdfIn PDF document text
- https://vegan-eshop.cz/data/file/13310420401.pdfIn PDF document text
- https://fereshtegan.net/basefile/fereshtegannet/files/83988336461.pdfIn PDF document text
- https://actsonics.com/uploads/files/202109250447118526.pdfIn PDF document text
- https://pratham.one/file/fesuwudanomofa.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/61420692715.pdfIn PDF document text
- http://myphamasia.net/upload/files/rawimuxaxezut.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161530a69a9a85---xemepirokokopu.pdfIn PDF document text
- https://interior-mark.com/ckfinder/userfiles/files/bugiwewaruruwijewifexavow.pdfIn PDF document text
- http://railwaysrailroads.com/upload_files/files/puxojojotoluso.pdfIn PDF document text
- https://rowadalbyt.com/userfiles/files/11611872039.pdfIn PDF document text
- http://ppogrimall.com/upload/editor_image/file/14711687680.pdfIn PDF document text
- http://szyuangang.com/UserFiles/file///71896865408.pdfIn PDF document text
- https://www.sherpachristain.org.np/ckfinder/userfiles/files/10074457314.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=indian+idol+junior+2015+winnerPDF 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_off0000b260.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB260 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA77 | 10672 bytes |
SHA-256: 9ad57077fbca1823f42c437cf16d6537902bcc353dd9aba0e8c6d975badd4537 |
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font_02_sfnt_off0000e313.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE313 | 15184 bytes |
SHA-256: 2a4d393dfffdd80f66d875c43e4588b7211dcfe9a97b286642f360eea7895591 |
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