MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external PDFs hosted on disposable domains, a common tactic for distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of external URIs and the PDF_RANDOM_URL_LINK heuristic suggest the document is designed to redirect users to malicious content, likely a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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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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://radissonhoteltraining.com/userfiles/file/23117634710.pdf In PDF document text
- http://sklepjola.pl/userfiles/file/7115329389.pdfIn PDF document text
- http://everestlodgelukla.com/userfiles/file/nexuriw.pdfIn PDF document text
- http://zulassungsservice4you.de/bilder/file/95998184761.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/faxodaweriwanigud.pdfIn PDF document text
- http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/12698128322.pdfIn PDF document text
- https://hotelite.in/userfiles/file/natiloluz.pdfIn PDF document text
- http://managhantasala.net/mailuserfiles/file/rafafasojubudenasatu.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1614834d430b88---79692395676.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/20054993370.pdfIn PDF document text
- http://ferien-in-zahren.de/images/file/62911224504.pdfIn PDF document text
- https://losaltos.com/wysiwygfiles/file/22465063362.pdfIn PDF document text
- http://euro-ex.com/images/blog/file/xomiguvodogirulakunado.pdfIn PDF document text
- http://elhammagazine.com/ckfinder/userfiles/files/nejujamamito.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/fifobarupoxa.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/keruzipumofumobaleje.pdfIn PDF document text
- http://asea-admin.com/_userfiles/file/20210929193116.pdfIn PDF document text
- https://cncostruzioni.com/userfiles/file/jivawulamiterixunu.pdfIn PDF document text
- http://e-menu.hu/editor_up/11659857506.pdfIn PDF document text
- https://caraudioshop.ro/mm/file/56641325572.pdfIn PDF document text
- http://autoklej.pl/app/webroot/media/files/42162261509.pdfIn PDF document text
- http://galsabino.it/userfiles/files/16150542288.pdfIn PDF document text
- http://xnucleus.com/members/member_images/files/dulebosadasotejuges.pdfIn PDF document text
- https://cserepakcio.hu/xdata/file/63029538045.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b0fdce457a---49928681362.pdfIn PDF document text
- https://cuatudongsaigon.net/uploads/files/64386665707.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/23D8k0Ec_6w/uplcv?utm_term=pursuit+of+happyness+worksheet+answer+keyPDF 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_off0000bbbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBBF | 10804 bytes |
SHA-256: 91fca37457e5d33c4b2001ccdaeee31041b5ce0fad6c6f51abdd997bd7afb053 |
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font_01_sfnt_off0000d4be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4BE | 17160 bytes |
SHA-256: f302790aead22d844ac2398ac63c83c59c12156062eec1a6a18472514c47d437 |
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font_02_sfnt_off00010124.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10124 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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