MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to a link farm hosted on disposable domains, a common tactic for phishing or distributing further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to obscure the final destination through a large number of redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9765
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://4els.ru/uploads/images/files/femibidoxorewipa.pdf In PDF document text
- https://nezrenweb.com/calisma2/files/uploads/bezevetupibukada.pdfIn PDF document text
- https://dalnoboy.com/data/filestorage/upload/files/44630697302.pdfIn PDF document text
- http://fotofolliasanlazzaro.it/userfiles/files/78754205647.pdfIn PDF document text
- http://www.radio-kum.si/data/files/suritanixax.pdfIn PDF document text
- https://palezieux.com/ckfinder/userfiles/files/foxusaza.pdfIn PDF document text
- http://goref.ru/files/file/pezudoge.pdfIn PDF document text
- http://entryexpress.online/chapter_images/files/19642727754.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd1f6ebdcb---vorikulolafa.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/63055931054.pdfIn PDF document text
- https://sandp-engineering.com/ckfinder/userfiles/files/44145463443.pdfIn PDF document text
- http://dc-42351dc5a6b3.prshots.es/uploads/userfiles/1631023140/files/45479952440.pdfIn PDF document text
- http://dokturmice.com/ckfinder/userfiles/files/88220515021.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/kidufutedavifobefuremuk.pdfIn PDF document text
- http://boekenwinkelindex.nl/images/uploads/84969825844.pdfIn PDF document text
- https://ww150007.linebot.net/upfile/files/20210903064613.pdfIn PDF document text
- http://hairfibers24.com/upload/file/41158467807.pdfIn PDF document text
- http://bsa.by/ckfinder/userfiles/files/19697384413.pdfIn PDF document text
- http://marathon-gexin.com/Uploadfiles/files/96878363315.pdfIn PDF document text
- https://dodatnojamstvo.com/userfiles/file/63419690897.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/77227565064.pdfIn PDF document text
- https://talaa-obour.com/webmisr/uploadwebmisr/file/19938823462.pdfIn PDF document text
- http://mkconline.com/landmark/ckfinder/userfiles/files/bosebebupezapuxefuf.pdfIn PDF document text
- http://aftckwt.com/uploads/file/kekibuwetifosijiwazorelad.pdfIn PDF document text
- http://vom-ragnaroek.de/uploads/file/74073134797.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131da2d9e3ed---62914306822.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=passive+vs+active+voice+in+writingPDF 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_off0000e5ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5ED | 18300 bytes |
SHA-256: f6ec9fc5d28600bbed69211acaf04e92ebbfd36aabd856dfb5ed7a6076e6da93 |
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font_01_sfnt_off00011512.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11512 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D29 | 10512 bytes |
SHA-256: 45e54a489b52f956f134e268764d3ca7d504ad7f357d2b2dbd4f337490e3a8f3 |
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font_03_sfnt_off00014552.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14552 | 16448 bytes |
SHA-256: 0e4cde3d5bdd5452960de995a4807c8da4ec665155a9812e2f8e54e6c49b7878 |
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