MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The primary purpose appears to be phishing or malware delivery through these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://wastran.ru/uplcv?utm_term=how+to+convert+a+website+into+pdf PDF link annotation
- http://hzzxtl.com/UploadFile/file/20210904210145509.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16134bcc0c5a2a---29402954855.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/sapunepubu.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/50902250425.pdfIn PDF document text
- http://daglichtfilters.nl/ckfinder/userfiles/files/17136688268.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1612ebf4d76d32---48161807241.pdfIn PDF document text
- https://stephankeppel.com/userfiles/file/tisipujo.pdfIn PDF document text
- http://sieuthicayxanh.vn/webroot/img/files/lonoboririfejoviporow.pdfIn PDF document text
- http://meubelenindex.nl/images/uploads/4976991819.pdfIn PDF document text
- https://citrasas.com/ckfinder/userfiles/files/31815079879.pdfIn PDF document text
- https://lose-weight.tw/upload/files/44241201078.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/gudifizezuweponitaneg.pdfIn PDF document text
- http://chistogood.ru/admin/ckfinder/userfiles/files/52451975220.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613238f8513fc---bewaz.pdfIn PDF document text
- http://studioarchoggianiepartners.it/userfiles/files/givima.pdfIn PDF document text
- http://greenflameenergy.com/userfiles/file/12802822273.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/a32aa5497de77375b49a20cd8a78d1e9/gezuwakadegatarozij.pdfIn PDF document text
- https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/92054269369.pdfIn PDF document text
- http://speckletrack.com/update/editor/file/24353934009.pdfIn PDF document text
- http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/mazowefolebijixotobagelub.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/lc8ffmjapbrjtiiuhegqbce0pg/9204593418.pdfIn PDF document text
- http://miyozenemeryville.com/uploads/files/vosulivatoje.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_off0000b4a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCBF | 10852 bytes |
SHA-256: c530e477db098658a0413adbef8924519317cb770cac8c077ee84cbd5cd1eb84 |
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font_02_sfnt_off0000e5bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5BB | 14836 bytes |
SHA-256: 129a8f9bf88b8408fcb15b65277393509b7379d51fbeeec3b89211f6bcfeb1ac |
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