MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by multiple heuristics, including ML classification and ClamAV detection. It contains numerous external links, many of which are algorithmically generated and hosted on disposable domains, suggesting a link farm or phishing lure. The presence of embedded URLs and the PDF_RANDOM_URL_LINK heuristic indicate an attempt to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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://medvor.ru/uplcv?utm_term=virtual+global+pubg+apk PDF link annotation
- https://alice-immo.com/userfiles/file/42745977552.pdfIn PDF document text
- https://turkuazhost.com/calisma2/files/uploads/13525953431.pdfIn PDF document text
- http://visusmarble.com/images_upload/files/2203982421.pdfIn PDF document text
- http://www.singchai.co.th/ckfinder/userfiles/files/14789611808.pdfIn PDF document text
- http://krakowska98.com/zdjecia/fck/file/45540304694.pdfIn PDF document text
- http://captainkillmite.com/uploads/files/202109090820422008.pdfIn PDF document text
- http://nuovartea.eu/userfiles/files/60758190039.pdfIn PDF document text
- http://aerotechgroup.ru/img/outer/files/39966689901.pdfIn PDF document text
- http://struttur-arch.it/userfiles/files/mofiperenov.pdfIn PDF document text
- http://sanruou.com/app/webroot/uploads/files/61731349624.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/fumumexodagadorupej.pdfIn PDF document text
- http://torgoborud.org/images/file/73935445805.pdfIn PDF document text
- http://gorsilawfirm.com/userfiles/file/pajij.pdfIn PDF document text
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/7378114492.pdfIn PDF document text
- http://cuuhoatudong.com/upload/files/2525328942.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614167d056e10---31423478110.pdfIn PDF document text
- https://ww150002.linebot.net/upfile/files/20210905095905.pdfIn PDF document text
- http://unewstoday.com/task/userimages/file/mozapeta.pdfIn PDF document text
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/xusekomijugoguxawuzem.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/50508710641.pdfIn PDF document text
- http://yidaig.com/uploadfile/file/20210916003637.pdfIn PDF document text
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/bagobilinoxojotonaxole.pdfIn PDF document text
- http://www.ccengis.be/applications/ckeditor/addons/ckeditor/ckfinder/userfiles/files/50191394926.pdfIn PDF document text
- https://parkettworld.com/upload/files/98861734998.pdfIn PDF document text
- http://reestr.fgosvo.ru/files/files/42973414225.pdfIn PDF document text
- https://rtaadmin.mrv-educationservices.com/content_file/files/zigerolipevinura.pdfIn PDF document text
- http://baiduvpn.com/upload/files/90441698776.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_off0000b523.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB523 | 19140 bytes |
SHA-256: 5c6c3a4e0f2b3eba45f3a2b83ad5dcda6a8eb5b93d73d60d560870e43d7c68e5 |
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font_01_sfnt_off0000e64e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE64E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fe65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE65 | 10324 bytes |
SHA-256: 21469032ad34c2bfc41e24f9243b634614c284d315d068f1aebe9f328856cb0e |
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