MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests this PDF may be intended to trick users into downloading an archive, possibly by providing a password to decrypt it, thereby bypassing gateway security. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cheumst.com/upload/fckeditor/file/55324860478.pdf In PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a91f2923a80---ribijejuxalobujopufedu.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aaed1ebc629---48441671397.pdfIn PDF document text
- https://bahia-group.com/ckfinder/userfiles/files/36810280594.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/2ilv2f8r9p1dbhgrj1kivc7gq4/18813662254.pdfIn PDF document text
- http://studiotecnicodama.it/userfiles/files/61873158766.pdfIn PDF document text
- https://perfecthospital.org/FCKeditor/file/6053135744.pdfIn PDF document text
- http://abpaluso.com/upload/file/3844673257.pdfIn PDF document text
- https://rewaqousha.net/userfiles/files/beriwivujoto.pdfIn PDF document text
- https://merydian.pl/nowymerydian/userfiles/file/noxiliwelibabeboj.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/88857648523.pdfIn PDF document text
- http://www.cafeinca.com/img/public/contenido/file/98732377825.pdfIn PDF document text
- https://casabresciani.it/uploads/file/68998058966.pdfIn PDF document text
- http://japan-railpass.info/images/blog//file/94369227761.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160be41cdc7c66---setokibowogobugajitazuko.pdfIn PDF document text
- https://manajrgvaaradhi.com/cms-uploads/files/61975529953.pdfIn PDF document text
- https://biocoils.com/img/file/nelamasusukux.pdfIn PDF document text
- https://cheesykeju.com/contents//files/netikawevudagofem.pdfIn PDF document text
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/6d22d779dd7d75a76243063c6de6e78a/33351303665.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160747c112fc14---42063796358.pdfIn PDF document text
- http://mprime.net/ckfinder/userfiles/files/53771324612.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/wulakutarunuvarozerokonab.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/45498709813.pdfIn PDF document text
- https://sanruouvang.net/images/uploaded/file/5841119688.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=gnu+grub+reference+manual+pdfPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001ca9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CA9C | 10764 bytes |
SHA-256: 087a56b923d0d917ec45cf221279162473ab3d5623444f43172baad3a644eed8 |
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font_01_sfnt_off0001e2ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E2EE | 19852 bytes |
SHA-256: 312ee9a82d7ab77dc1f8b8444089056bf214a1acfca9908e63d3f0e0fc385dde |
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font_02_sfnt_off000217b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x217B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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