MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations, suggesting a link farm designed to distribute malware or conduct phishing. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://medvor.ru/uplcv?utm_term=government+organization+manual PDF link annotation
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c74bd94f041---nositewiwifugofofetefon.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606e2e187e979---wamoganixomu.pdfIn PDF document text
- http://tsrmmessina.it/userfiles/files/95671357905.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095f99d2aee4---36159149789.pdfIn PDF document text
- http://zamokugrofa.sk/admin/fckeditor/file/majap.pdfIn PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160799fbabf6fa---patupido.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/28ba2ea5b1983d01ede867a76e7d48f7/muzixumazasibomasemapek.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160714bee7a68f---voxulizijamitet.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/jskm3db5242n13624k5ealu3t2/24279180962.pdfIn PDF document text
- https://ahha.az/userfiles/file/54629775070.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c745f83a768---libuxa.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/235b12d6d4c2a1a4376024fc215f7252/94218750460.pdfIn PDF document text
- http://sanitaerprofi.ch/fckeditor/editor/images/file/jujisuzilomobiginizas.pdfIn PDF document text
- http://myjobcareer.net/userfiles/file/2021062108091673499.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/084t13pke8d6va7k3ndh8anmo2/woragoxunopigepisodi.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607c606f74891---nomazujigetakoxudavute.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/0dd01c3e3d9cdd396d02104e2479dc50/44564228553.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/99146136492.pdfIn PDF document text
- http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/35404204268.pdfIn PDF document text
- https://centrorevisionimonregalese.it/file/ximuxoraneretosekuferig.pdfIn PDF document text
- https://capecoralliving.com/media/file/mevidikava.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606e888f25d5f---buxax.pdfIn PDF document text
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/4ce4bea773197f30d49d338de9addc32/48408929084.pdfIn PDF document text
- http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/50632771966.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/uf0jp7mh3fermk1oeim6cb5s84/19008961726.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_off0000f485.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF485 | 10548 bytes |
SHA-256: 422d033bad058c8acbd98347d5f9483b7adf018d4d2cbbbe572c9697d6ec608d |
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font_01_sfnt_off00010ca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000124b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124B5 | 18216 bytes |
SHA-256: cadddb459a8c95ceb5ff26918f17b060a46d249ea9ec39682c94201bef7394a7 |
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