MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate the document functions as a link farm, presenting numerous links to external PDF files, likely as a lure for users to download malware. While no scripts were directly extracted, the nature of the link farm and the ML/ClamAV detections suggest an intent to deliver a malicious payload via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://infoegrafica.com/userfiles/files/wurugowagetitevira.pdf In PDF document text
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/53324939070.pdfIn PDF document text
- https://karatenarrewarren.com.au/ckfinder/userfiles/files/31564779636.pdfIn PDF document text
- http://savitaco.com/uploads/images/files/40953667337.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/685c1e4241bb1ee6f8f72560485850f5/28387340899.pdfIn PDF document text
- https://bepxuyenviet.com/upload/files/jukapadijedex.pdfIn PDF document text
- https://atcotourismtravel.com/userfiles/file/38225873785.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/liratulosujeti.pdfIn PDF document text
- http://customize.fr/fckeditor/editor/filemanager/connectors/php/img/Editor/file/65274174786.pdfIn PDF document text
- https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/18181840413.pdfIn PDF document text
- http://kavtas.com/images_upload/files/gulakibaxejoxume.pdfIn PDF document text
- http://jpind.pl/userfiles/file/puwemiponir.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///83920560950.pdfIn PDF document text
- http://erbamedica.org/userfiles/files/65273360395.pdfIn PDF document text
- http://harlit.com/upfiles/file/depilibeluzerumebid.pdfIn PDF document text
- http://www.startservis.sk/novy/ckfinder/userfiles/files/juporu.pdfIn PDF document text
- https://silky.ae/images/bulk_images/files/11344244988.pdfIn PDF document text
- http://extrastyle.ee/ckfinder/userfiles/files/92591669810.pdfIn PDF document text
- https://tuinvandecruys.be/file/82486273418.pdfIn PDF document text
- http://about-dogs.ru/upload/file/19179878384.pdfIn PDF document text
- http://hglobaltour.com/FileData/ckfinder/files/20210914_0A4466DF83B92629.pdfIn PDF document text
- https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/gadapuravoru.pdfIn PDF document text
- https://holycrosshealthcare.com/userfiles/files/kewujavufor.pdfIn PDF document text
- http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wetilelij.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161353880cf364---piruvelasokaw.pdfIn PDF document text
- https://www.agcontraincendios.es/ckfinder/userfiles/files/96912557093.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=android+music+library+managerPDF 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_off0000dcdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f4f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F2 | 10952 bytes |
SHA-256: d5e3d37d6dc29c067366d51121b81150455bc74c72fb42cc593bead49511c313 |
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font_02_sfnt_off00010e20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E20 | 18396 bytes |
SHA-256: efa5d596912cf62acbe0fe2973f16f4a321106bd73cad4fa7aa72964db398be3 |
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