MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous embedded URLs, many pointing to PDF files on potentially disposable hosting, suggests a link farm or phishing lure. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically flags this behavior. While no scripts were explicitly extracted, the PDF format can embed JavaScript for malicious actions, hence T1059.007 is included as a potential vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://surestegc.org/documentos/file/57051914969.pdf In PDF document text
- https://maintogelonline2.com/contents/files/25947421285.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210930_204802.pdfIn PDF document text
- https://mebelihome.ru/upload_picture/22025774490.pdfIn PDF document text
- https://phukienbep.net/media/files/kasijufiluzevuwenuzas.pdfIn PDF document text
- http://ilsogno-bomboniere.com/userfiles/files/dufogosusoboxetuzapuwabo.pdfIn PDF document text
- http://doorsatyrau.com/ckfinder/userfiles/files/pisekewumajulo.pdfIn PDF document text
- http://morard-mcf.fr/data/Files/25596026191.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109082346165698.pdfIn PDF document text
- http://vagtteam.dk/userfiles/Files/11321505489.pdfIn PDF document text
- http://jjburgerut.com/uploads/files/gitisavezamuxotujolom.pdfIn PDF document text
- https://www.peltonfell.org.uk/ckfinder/userfiles/files/23403179640.pdfIn PDF document text
- https://chatham-ebenezer.ckdomain.com/uploads/userfiles/files/4923398515.pdfIn PDF document text
- http://peterpan1996.it/userfiles/files/28044775679.pdfIn PDF document text
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/xibikumexenobinowekuze.pdfIn PDF document text
- https://emailing-online.fr/uploads/userfiles/file/gidovebisaxux.pdfIn PDF document text
- http://pitchdecor-construction.com/user_img/files/89468035030.pdfIn PDF document text
- https://peptidturkiye.com/ckfinder/userfiles/files/vagugo.pdfIn PDF document text
- http://krupongs.com/images/file/lejexuwovezumifejo.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16160ba523c722---32815521973.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad43c52262---4343796393.pdfIn PDF document text
- http://nguyenthaotech.com/upload/files/13914770886.pdfIn PDF document text
- http://mateuszkucharski.pl/admin/file/fupobukifimezulale.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=light+for+visual+artists+understanding+%26+using+light+in+art+%26+design+pdf+free+downloadPDF 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_off0000ebd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBD3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000103ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103EA | 10756 bytes |
SHA-256: a40fbdeec69049cb10d9095b5bb92293d43bc86f192435f1431bdc2612a3dba2 |
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font_02_sfnt_off00011c69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C69 | 18892 bytes |
SHA-256: 9166354efd1da90bec8a09c4ed242b6c7f63998894f69961d2b29a1c79af2d10 |
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