MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a spam or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://www.ez4parcel.net/upfile/files/2021/09/24/karezekukopoxewojem.pdf In PDF document text
- http://www.plan.msu.ac.th/ckfinder/userfiles/files/zexuwegavifoxafaku.pdfIn PDF document text
- https://pinyardim.com/calisma2/files/uploads/5576417117.pdfIn PDF document text
- http://fitviewer.de/files/file/45508387337.pdfIn PDF document text
- https://indiantalentjunction.com/milan/media/10015982527.pdfIn PDF document text
- https://asfus.net/virgsurv/userfiles/file/82907555205.pdfIn PDF document text
- http://winkeleninzundert.nl/uploadimages/files/37831558025.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca03977a0e---88262549190.pdfIn PDF document text
- https://giga-tronics.com/userfiles/files/8924514008.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/20770200412.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613775784ff4f---91988161562.pdfIn PDF document text
- http://thaimassagemodel.com/ckfinder/userfiles/files/zeduwekilerixinisemujov.pdfIn PDF document text
- http://anapharmata.hu/ckfinder/core/connector/php/files/14478382989.pdfIn PDF document text
- http://autosvilar.com/uploads/ckfinder/files/47757621994.pdfIn PDF document text
- http://bulmarconsult.com/files/baxofetifijakonipeve.pdfIn PDF document text
- http://cathugo-catamarans.de/res/wysiwyg/file/276147206.pdfIn PDF document text
- http://sunway.me/uploads/file/161810334212.pdfIn PDF document text
- http://stmrcstvm.com/userfiles/file/juvapevigavimi.pdfIn PDF document text
- http://www.afurg.com.br/assets/ckfinder/userfiles/files/26239924677.pdfIn PDF document text
- http://lamekatus.ee/uploads/ckeditor/files/80118620738.pdfIn PDF document text
- https://mimpishiodua.com/contents/files/tudibajar.pdfIn PDF document text
- http://bbbo.handyfriendship.com/upload/files/wamidutu.pdfIn PDF document text
- https://kampusogrenciyurdu.com/file/23896240951.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/31285179125.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=2+letter+words+ending+in+vPDF 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_off0000b4f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD05 | 17660 bytes |
SHA-256: 28382bb8389d683b90864399cd23ae71495a1dfa18af6b91ccae40533439bfa2 |
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font_02_sfnt_off0000faa3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAA3 | 10436 bytes |
SHA-256: 559788e423fa59f74123b55daec74f04157e57d45793b3a79b86d710d8bce267 |
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