MALICIOUS
156
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 WordPress sites or disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://synerhu.ru/uplcv?utm_term=best+screen+and+internal+audio+recorder+for+android PDF link annotation
- http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/63201986049.pdfIn PDF document text
- http://www.anjhimayath.com/upload/file/konigokaxug.pdfIn PDF document text
- http://bptramptour.pl/files/file/42878933529.pdfIn PDF document text
- https://colakcivi.com/userfiles/file/bunorupawozotelovo.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140717642a20---vifivunefiduko.pdfIn PDF document text
- http://www.centrosanmarco.eu/img/news/files/somezimutupisenuji.pdfIn PDF document text
- https://media-get.ru/userfiles/files/87551672797.pdfIn PDF document text
- https://thebillionbottom.com/business_school/uploads/file/gojujafelu.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16138e332296d3---42372668158.pdfIn PDF document text
- http://9262895.ru/ckfinder/userfiles/files/2862377597.pdfIn PDF document text
- http://free-note.kr/files/fckeditor/file/100686184613716b589d97.pdfIn PDF document text
- https://nhahangphongcanh.com/uploads/files/5148858563.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/b09cc550909d8bfe3b3ef390873c96f8/60553075491.pdfIn PDF document text
- https://mdteam.se/ckfinder/userfiles/files/posuxexekutakaxonu.pdfIn PDF document text
- https://jagamimpi.net/contents/files/zaduvokurufafodod.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/22997446865.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/f686ee035c4482578fa34622cf418661/86852680826.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/97054971254.pdfIn PDF document text
- http://15441707.com/data/board/file/20210910011944.pdfIn PDF document text
- http://www.madiran-cruduparadis.fr/ckfinder/userfiles/files/76098219864.pdfIn PDF document text
- https://speak82.com/_UploadFile/Images/file/putase.pdfIn PDF document text
- http://topp.pl/_topp/file/jeripelere.pdfIn PDF document text
- http://townofwinslowin.com/flash/townofwinslowin.com/file/73575241439.pdfIn PDF document text
- http://pro.ovh.net/~tribuene/images/banque/file/pokididokotof.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_off0000e015.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE015 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF827 | 18180 bytes |
SHA-256: 380ae49886b0becbca340a28c575c795cda53569519a19a916e725e3ede210ca |
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font_02_sfnt_off00012727.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12727 | 10624 bytes |
SHA-256: a33bc08c368cc52d077f56d5a17faea167325c65819cdb299bf69f92938b995c |
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