MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm hosted on compromised CMS uploads and disposable domains, likely to redirect users to malicious sites. The document body is unreadable, but the presence of numerous unknown URLs suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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 https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/7625e133c80932b6586ba0141b7bf5b7/74495193154.pdf In PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1615223819f9a5---43313074534.pdfIn PDF document text
- https://trvstore.com/userfiles/file/mugejisugomosiboriwuwiba.pdfIn PDF document text
- http://boschvietnam.com/files/usersfiles/files/goporanaxeriletatuv.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161486e523ed78---bolilodisoletodedodezuna.pdfIn PDF document text
- https://jungleflightchiangmai.jungle-flight.com/Uploads/files/didarul.pdfIn PDF document text
- http://wxmx.cn/upload/ckimg/files/202109081119185214.pdfIn PDF document text
- https://art4you.sk/editor_uploads/system/files/gamiveg.pdfIn PDF document text
- https://buzascsaba.hu/userFiles/file/jesarapetuj.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8e3edfbc4---26838635534.pdfIn PDF document text
- http://galenbio.com/images/upload/file/pawubomawenosogepobubi.pdfIn PDF document text
- http://landia-print.com/pdir/file/32896884789.pdfIn PDF document text
- http://rambud.pl/uploaded/file/nulamuvamiweviru.pdfIn PDF document text
- http://www.egymast-segito.hu/uploaded/fck/file/potawomuliti.pdfIn PDF document text
- http://talleresjpg.es/img/file/82284051581.pdfIn PDF document text
- http://yongqingtech.com/d/files/bokexomulajipuxelafonera.pdfIn PDF document text
- http://fzsvybbs.at/userfiles/file/73044069967.pdfIn PDF document text
- http://desushibar.com/userfiles/file/48899628164.pdfIn PDF document text
- http://monterroso-construpuntos.com/campannas/file/20258365471.pdfIn PDF document text
- http://hoya-system.com/uploads/files/202109200926207137.pdfIn PDF document text
- http://cestovni-postylka.eu/userfiles/file/85819612405.pdfIn PDF document text
- http://mmckno2010.zkosuchdol.info/files/936488127.pdfIn PDF document text
- http://webbolt.fono.hu/data/editorfile/12475092515.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/cmwvf4RlXg4/uplcv?utm_term=asian+stink+beetlePDF 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_off00013682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13682 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014e94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E94 | 20388 bytes |
SHA-256: db4c47e503a9b203b8073fc120db330950a0036f1e28de54d6912ee68c8aa680 |
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font_02_sfnt_off00018425.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18425 | 10096 bytes |
SHA-256: 6ad88ed78f54b060d00114df7aa5cccd6343d7f99f1d1111b90dbe4452a76b12 |
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