MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a link farm pointing to various PDF files hosted on compromised or disposable domains, suggesting a phishing or credential harvesting campaign. The presence of invoice-related language further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://bjhtdszdh.com/v15/Upload/file/2021791848316023.pdf In PDF document text
- http://smitheaster.org/clients/861344/File/balejugaweloxepe.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083525581572---rodonusubeditetinexi.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/u7rl7b3tsj558tutdo94m6vkjs/76429209401.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/8af0c6fe7ee3dd7b2c116797ccc418a9/92763652226.pdfIn PDF document text
- http://aligokdemir.com/resimler/files/18564316614.pdfIn PDF document text
- http://sarlampa.ru/upload_picture/netenedizapev.pdfIn PDF document text
- http://hainescentreasia.com/images/file/97467132674.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/8488946097.pdfIn PDF document text
- http://banhangcongnghe.com/upload/FCK/file/nipunu.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608099bf0cbee---45971657689.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940aa82ea56---netufunegetoluxize.pdfIn PDF document text
- http://meta-min.com/files/58213239913.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c07b6f7a742---49175055253.pdfIn PDF document text
- http://hydrem.ru/images/file/5760619385.pdfIn PDF document text
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/a515caa9aa31a9d8edadf209650cf9bd/9490690836.pdfIn PDF document text
- http://www.alfapilates.pl/upload/file/44983503980.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/e6c39bda8faf0b93b69a0a4136c2e26f/jorojanopabezifuliko.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087d3dacf794---baxet.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/d3daf04781c252cc652753d5de747f85/manigulexaferaz.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab45b5a518b---jifarorisagevagimipisogux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=accrual+accounting+examplePDF link annotation
- https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/10346954652.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_off0000de59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE59 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f670.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF670 | 10732 bytes |
SHA-256: 422d85eb084d41a45284e70c09a61f8934c24f9631cfe4cc865e0db958c85ce5 |
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font_02_sfnt_off00010f17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F17 | 16000 bytes |
SHA-256: 305f55d07b06c8ed517693b171763c2555217e5088481d2bc1399d27b0146592 |
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