MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing numerous embedded URLs, many of which point to disposable domains and are used in a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to host many links, likely to redirect users to malicious sites. The presence of 'utm_term' parameters in URLs further supports a phishing or scam-related lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://synerhu.ru/uplcv?utm_term=tawakkalna+download+app PDF link annotation
- http://top1np.com/ckfinder/userfiles/files/54358013259.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/20572441718.pdfIn PDF document text
- http://jdjcnc.com/upfolder/e/files/20210912221633.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/zufalavibal.pdfIn PDF document text
- https://shopexpert.com/app/webroot/files/userfiles/files/xefisejew.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/26345613953.pdfIn PDF document text
- http://eia-edu.com/userfiles/file/21664200814.pdfIn PDF document text
- http://patanamachine.com/imgUpload/files/netogekowunenawuva.pdfIn PDF document text
- https://bjjewels.net/nbloom/fckuploads/file/mukegivalizonetigiraviji.pdfIn PDF document text
- http://baobianhkhang.com/upload/files/17174165627.pdfIn PDF document text
- http://ptsound.com/plugins/ckfinder/userfiles/files/lugupaxegixe.pdfIn PDF document text
- http://www.bash.cl/media/file/66788785398.pdfIn PDF document text
- https://vantainoidia.vn/ci/userfiles/files/fosevatesanabip.pdfIn PDF document text
- https://francois-daulte.com/ckfinder/userfiles/files/22253926118.pdfIn PDF document text
- http://ptairsupply.com/userfiles/file/49912960022.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210910061752250.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/91408030164.pdfIn PDF document text
- http://xmzhj.com/UserFiles/file/55762014233.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6511dd4c0---tubutuvemov.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3cbcb180b---91653877264.pdfIn PDF document text
- https://monyetmesum.com/contents/files/fepowovakite.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/gesajugifedamamoju.pdfIn PDF document text
- https://sudhirsachdevaclasses.com/ci/userfiles/files/xopepurevawekizefos.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_off0000d407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD407 | 17168 bytes |
SHA-256: ac5ffbc695552c5a47d9b4516e10ed952091cbce888828ebec875a9f281ed81e |
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font_01_sfnt_off0001007f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1007F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011895.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11895 | 9936 bytes |
SHA-256: 2e9f1265859d21c74041dd6548647eb8ee88c6f038343e143fe631f840e07794 |
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