MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of malware. The heuristics identified the document as a link farm pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The embedded URLs, while numerous, are the primary indicators of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608864d85d75a---17077351009.pdf In PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/dbbed9e8fb0254fb79ceb32a07b19691/32375550722.pdfIn PDF document text
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/mdq1ocbven8hcnt4jqvq56ougg/82212287228.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160bdae6267366---37964983785.pdfIn PDF document text
- https://media-get.com/userfiles/files/27248976741.pdfIn PDF document text
- http://el-system.jp/uploads/2012/files/35129575355.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb55a58853---repavizage.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/f8b92936af382f83c178d258b4a13648/nonulovamoduk.pdfIn PDF document text
- http://leoclubmarsala.it/userfiles/files/25040121341.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/tifuvaxoperoro.pdfIn PDF document text
- http://gitimohammadilakhimpur.org/ckfinder/userfiles/files/novujefokebegidalivewir.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/nvd66ckpd79iqkm01bk0mpquah/sopewijebibodadetokom.pdfIn PDF document text
- https://office-agglo-larochelle.fr/userfiles/file/30618143645.pdfIn PDF document text
- https://samowar.ch/upload/file/tugelidasunukiborebup.pdfIn PDF document text
- http://adacu.org/userfiles/file/20210619140656.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1bfc8ac8---76305196150.pdfIn PDF document text
- https://fsreloading.com/userfiles/files/zujifopu.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/tmp/91967145538.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/528d86c87224bc26a5176d43406fd6d1/juxotojaxuriwetux.pdfIn PDF document text
- http://ya-ke.cn/admin/upload/jebof.pdfIn PDF document text
- http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/lurekezupasositaxudar.pdfIn PDF document text
- https://tranduongauto.com/app/webroot/files/images/pages/files/72081203792.pdfIn PDF document text
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/2e7637cc563c6d8d444623b8424a7e9f/30533427083.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/fejanufubokikolozekogon.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=pouch+reset+diet+menuPDF 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_off0000db01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB01 | 10528 bytes |
SHA-256: 14ccb613e46458ddbc4469e2b3814dd432a84052a257d306c14daed7b1b9ecd2 |
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font_01_sfnt_off0000f2dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010aee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AEE | 16484 bytes |
SHA-256: 2560fca0150c312843440ce4f029d97e5ea08efa4cee34f76c8e7b7aa84257ac |
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