MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS upload directories or disposable hosting, suggesting a link farm for phishing or malware distribution. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the structure and URL patterns are consistent with phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 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://writtenmail.com/upload_images/file/dumifakigumek.pdf In PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b40e9602471---18067561086.pdfIn PDF document text
- https://alohasafaris.com/files/40244140387.pdfIn PDF document text
- https://vivekanandbawwa.com/userfiles/file/2266603289.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/9102a18f64f7a78a93bc7c160c1a484e/21644550039.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/0o14c5s8avei4dv8095ppqak9j/beboxebupubasopazemigakog.pdfIn PDF document text
- https://ckeditor.pamlskovnik.cz/ckfinder/userfiles/files/nuvajegawo.pdfIn PDF document text
- http://eugensa.lt/app/webroot/uploads/userfiles/files/nadanafop.pdfIn PDF document text
- https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/suderewupobanova.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16087e8617135a---diwativewikedugiderek.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b62df599e62---38750152387.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7620669aa1---nenijiwopoxonevakin.pdfIn PDF document text
- http://majstrissmt.eu/www-data/file/88360345493.pdfIn PDF document text
- http://biomassasia.net/data_ed/userfiles/file/xizuvikinipiba.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/6f2e8b8abd4aed8307bad44ee2565d68/mujexazijunugumu.pdfIn PDF document text
- https://nguoixunghekiev.vn/userfiles/file/kuvukunoxexereju.pdfIn PDF document text
- http://skonasystems.com/userfiles/file/biponijo.pdfIn PDF document text
- https://dutchfansitenetwork.nl/ckfinder/userfiles/files/12918901193.pdfIn PDF document text
- http://aligokdemir.com/resimler/files/97283707633.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/996474e4ec7c3f514993a1ea4dc9beaa/95493979381.pdfIn PDF document text
- http://architects-desk.com/uploadsfile/sanuragetegikeviwix.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3cefc9f77b---62440751992.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2255e60d8---61766272841.pdfIn PDF document text
- http://kalikraft.com/images/file/47392793727.pdfIn PDF document text
- https://drbumbnursinghome.in/ckfinder/userfiles/files/resokupajokomugatanene.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/jj38r1p32vp12mjub4888qfo53/wapumatuxiregemak.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=tax+file+declaration+form+2019+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_off0000dd3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f54d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF54D | 16888 bytes |
SHA-256: 1488e53b7ef6710c8876e7e132fe484526207dcf46df9976a0f2c6aaf5101a2a |
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font_02_sfnt_off000120c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C7 | 11140 bytes |
SHA-256: 774eb43569d9ad8597f5b2d9699cb053b64ef30d38e119557077715e5ee52eef |
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