MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external URLs, many of which are hosted on disposable domains and appear to be part of a link farm. One high-severity heuristic specifically flags a PDF link to an algorithmically-generated URL, indicating a likely attempt to distribute malware or conduct phishing. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://inwebjor.ru/uplcv?utm_term=galaxy+tab+a7+tips+and+tricks PDF link annotation
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/s1gaut49j6bo8a2h6g1khb2045/tefisuwonoxu.pdfIn PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/jorukuviva.pdfIn PDF document text
- http://synthecinter.com/userfiles/files/67011439049.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210904210145509.pdfIn PDF document text
- http://jeanchapleau.com/userfiles/file/687282033.pdfIn PDF document text
- http://debsecond.net/UserFiles/File/31760901854.pdfIn PDF document text
- https://equator-maritime.com/userfiles/file/78784358280.pdfIn PDF document text
- http://chi-kara.net/Upload/files/lawexuzebikowulupenijo.pdfIn PDF document text
- https://sanagustin.cl/files/ponepelujewebokusexarivun.pdfIn PDF document text
- http://www.morrisjones.co.uk/EditorImages/file/23982369343.pdfIn PDF document text
- https://wrd13.com/force/file/79967278374.pdfIn PDF document text
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d69c04cc8---dunofivonavirore.pdfIn PDF document text
- http://erdbau-rauch.at/mavodoxigam.pdfIn PDF document text
- https://asztromiskolc.hu/ckfinder/userfiles/files/82754021251.pdfIn PDF document text
- https://dichvuhappyhouse.com/upload/files/tofexitu.pdfIn PDF document text
- http://richardchong.com/userfiles/files/36033870770.pdfIn PDF document text
- https://mbzl-pro.xyz/web/img/podborky/files/kopuzalevovebufaredizi.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/begegoluwovizaxesagomus.pdfIn PDF document text
- http://flapboxes.com/userfiles/files/fomiwofunukirasasimegidir.pdfIn PDF document text
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/jovopugogubul.pdfIn PDF document text
- http://saipanbooking.com/FileData/ckfinder/files/20210902_E73714A6506FCCA6.pdfIn PDF document text
- http://gunjanjain.com/app/webroot/js/uploads/files/10353143538.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_off0000d789.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD789 | 17272 bytes |
SHA-256: 3faa44b1129436533835effcae5f28658038aa95eb326bee075af9174a46dfba |
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font_01_sfnt_off00010473.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10473 | 10792 bytes |
SHA-256: f525317882a839a3ef7e3ed2d805227afc1632d8d1936191d5695b9021e3d0d4 |
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font_02_sfnt_off00011d54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D54 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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