MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to disposable domains, suggesting a link farm designed to distribute further malicious content or phish for information. The presence of JavaScript indicates an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://hferrynetworks.com/FileData/ckfinder/files/20210903_7D35575E37D77D96.pdf In PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/xaviworenigofibiba.pdfIn PDF document text
- http://konsultacjenaukowe.eu/Upload/file/15064026694.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0d321aacb---webolulakisovafek.pdfIn PDF document text
- https://exam11.menapoint.com/app/webroot/upload/files/60492816667.pdfIn PDF document text
- http://hanabi-la.com/uploads/files/godemiwaz.pdfIn PDF document text
- http://webinaris.org/ckfinder/userfiles/publics/files/31948439759.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/55627365098.pdfIn PDF document text
- https://bakwanudang.com/contents/files/wulikoli.pdfIn PDF document text
- https://praktijk.zorglink.nl/ckfinder/userfiles/files/75993260879.pdfIn PDF document text
- https://ncvpte.in/userfiles/file/13462133004.pdfIn PDF document text
- http://traslochimontalto.it/userfiles/files/bukenajajinofavolomito.pdfIn PDF document text
- https://lodoshosting.com/calisma2/files/uploads/53220680431.pdfIn PDF document text
- http://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/gotosojanak.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/65243240001.pdfIn PDF document text
- http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gokipiwusuzamivizobodafe.pdfIn PDF document text
- https://weilmclainboiler.ca/fck_upload/file/lezerifekefizu.pdfIn PDF document text
- http://contelex.it/userfiles/files/71897776737.pdfIn PDF document text
- https://zoomkish.com/basefile/zoomkishcom/files/40566079472.pdfIn PDF document text
- https://allmassage.net/upload/file/20210903045858.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/7077f4bc967df8dd07c75ec7aac71e24/59666613838.pdfIn PDF document text
- http://www.dfdtrading.sk/ckfinder/userfiles/files/diruwarumat.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=free+horror+moviesPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000103ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011bc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BC0 | 17264 bytes |
SHA-256: 7c5d7d3ffa413ebeb2477bb8408c6962ac942b4021ad82f2b74d38c4f797b2ea |
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font_02_sfnt_off00014887.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14887 | 10004 bytes |
SHA-256: 2bc44c020eb78712e8cfc70c6f41245e8061d3e7c65d6cd1611568f857bdbd24 |
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font_03_sfnt_off00015eb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EB5 | 18352 bytes |
SHA-256: a1b7c47b773907ae73db1d2801e6eeb5fd6df26e3a9dc7ba5fcfbdb1bbdbe06a |
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