MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 https://comobrew.com/newsite/images/user_uploads/file/bilubak.pdf In PDF document text
- http://csc0351.com/userfiles/file/20210902132710_kl9ivu.pdfIn PDF document text
- http://proallprint.com/userfiles/files/muvewabijefixexawotexe.pdfIn PDF document text
- https://sayurhijau.com/contents/files/91349482637.pdfIn PDF document text
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/24394684513.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/46225384773.pdfIn PDF document text
- http://99hospitalitygroup.com/ckfinder/userfiles/files/bapabe.pdfIn PDF document text
- http://ambulatorioveterinariorigolon.eu/userfiles/files/gulek.pdfIn PDF document text
- http://villaroyalenews.com/userimages/dupixanobedijevasokofo.pdfIn PDF document text
- http://space-edge.com/upload/files/18840429726.pdfIn PDF document text
- http://flynewsletter.com/uploads/file/finusiwatikevadamenojavik.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/99463492625.pdfIn PDF document text
- http://himalayakebab.com/shipinc/userfiles/files/68167900148.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/1532824376.pdfIn PDF document text
- https://serrechevalier-skifun.com/imagesfile/dumosupusubelu.pdfIn PDF document text
- http://qhchemicalsfeed.com/upload/files/27279144397.pdfIn PDF document text
- https://semangkamerah.com/contents/files/gilazunerasekanugem.pdfIn PDF document text
- http://ottotech.center/userfiles/file/96108985398.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/vafov.pdfIn PDF document text
- https://norservis.info/files/files/vefogesufu.pdfIn PDF document text
- https://weishinclinic.com/uploads/files/202109032102024093.pdfIn PDF document text
- http://pwr-tech.ru/userfiles/file/5922702446.pdfIn PDF document text
- https://lodoshosting.com/calisma2/files/uploads/99465990158.pdfIn PDF document text
- http://duszek-lasu.pl/userfiles/file/janusovetedenipaw.pdfIn PDF document text
- https://akvanova.ru/sites/default/files/6537463655.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=shiva+bicycle+racing+apkPDF link annotation
- https://b2cdemo.tickets.com/content/files/limisujapifejozufogu.pdfIn PDF document text
- 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_off0000c5ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5EF | 10752 bytes |
SHA-256: fb875162ae5c9fc93b3cc90c61e00e33536f413d3bf0e3e60cb8682867567b23 |
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font_01_sfnt_off0000de6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f67d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF67D | 17836 bytes |
SHA-256: 8086f800bcc28eda84f0bd8ca429dc7803d697eee7d4976ccea2550b2c74cfa5 |
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