MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which are associated with compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a phishing or malware distribution scheme. The ML classifier and ClamAV detection further confirm the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://pistant.ru/uplcv?utm_term=handshaker+apk+download PDF link annotation
- http://yummyschool.com/_UploadFile/Images/file/44054284941.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a18f0f969---wizigugosak.pdfIn PDF document text
- http://mayinluatudong.com/uploads/userfiles/file/tazosizadugimoboraxakis.pdfIn PDF document text
- http://heryeryesil.com/resimlerfiles/6874893852.pdfIn PDF document text
- https://receptabc.hu/images_banner/files/tajoxadamagofimazex.pdfIn PDF document text
- https://hunglivet.com/uploads/files/202109131747041066.pdfIn PDF document text
- https://safecampus.in/cmsCart/upload/file/59375068686.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210905005539.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/832155319.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/66041673613.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/tivujivuwemi.pdfIn PDF document text
- http://galerie45.com/userfiles/file/9174490438.pdfIn PDF document text
- http://kaupa.cz/userfiles/file/jasorod.pdfIn PDF document text
- https://kokomanis.com/contents/files/jimolevaxagiz.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/jexewakoke.pdfIn PDF document text
- http://hoshitorionline.com/uploads/files/senejajaduwo.pdfIn PDF document text
- http://fzsvybbs.at/userfiles/file/xalozudota.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/xezipiruju.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/609edb0a2a2acd2f116f3d588f7de6c1/botajuwijamini.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/rupegijugaxajudumuxo.pdfIn PDF document text
- http://www.gulbaharsigorta.com/contentData/file/59291251549.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141cc5040650---17940982279.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/99195755980.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/7099679280.pdfIn PDF document text
- http://aaaexpressheating.com/userfiles/file/kanizadurobezorasotoxoru.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_off0000d31d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD31D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB2F | 17848 bytes |
SHA-256: 3f5c18b38180b95fc7d5951fab225ba073e67e657945120b1f170e55925aeabb |
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font_02_sfnt_off00011920.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11920 | 10468 bytes |
SHA-256: 9474e6a61f7492df53412ec0e990af83650aaafa4d3627c7780531b10857929d |
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