MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, pointing to multiple compromised websites, some of which are hosted on disposable domains or compromised CMS uploads. The embedded URLs suggest a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16136eef764148---naxesibukupo.pdf In PDF document text
- https://santehsevast.ru/userfiles/files/kinofaxubobiwedetudut.pdfIn PDF document text
- http://jowinbio.com/upload/files/202109041453159299.pdfIn PDF document text
- https://textosolutionslinguistiques.ca/upload/editor/file/6686069848.pdfIn PDF document text
- http://goldmustang.ru/files/files/misabepasapasifuluvev.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161304e8a43f1f---rojusajixoretavitidul.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161313159a493d---1688619437.pdfIn PDF document text
- http://www.pethouse.es/ckfinder/userfiles/files/jakurikidagipet.pdfIn PDF document text
- http://telek-trans.hu/editor_up/76806519486.pdfIn PDF document text
- http://christopherdallo.com/file/75310162952.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/9e40f0eabfbbb132c93497e45cd4b77a/71042117603.pdfIn PDF document text
- http://vouchertiket.com/airplane/ckeditor/uploads/files/lizin.pdfIn PDF document text
- https://ganport.pl/userfiles/file/vejinugilanesupebabe.pdfIn PDF document text
- http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/vakijoxele.pdfIn PDF document text
- https://skillmapmagazine.com/ckfinder/userfiles/files/koxoz.pdfIn PDF document text
- http://kmconlinecme.com/userfiles/file/zawitakopajofezez.pdfIn PDF document text
- https://alarouba.com/ckfinder/userfiles/files/73575735399.pdfIn PDF document text
- http://cp-tournament.org/ckfinder/userfiles/files/ridabog.pdfIn PDF document text
- http://damosushipleasanthill.com/uploads/files/94526374853.pdfIn PDF document text
- https://alley.52886.tw/uploads/files/womexogulawibexaruwuba.pdfIn PDF document text
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/f6ca968a155d0adf5f9013b9f709bc62/28121777891.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=what+type+of+energy+is+chemicalPDF 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_off0000b545.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB545 | 11032 bytes |
SHA-256: d5e80d75ad9a2cc40670d9a3f4c0f2e70c630451b8516bf41f6691b6b9c5a42b |
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font_01_sfnt_off0000cecc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCECC | 15784 bytes |
SHA-256: f779bda83d2b4ea49920c77d9632d64b7b99402bb47b4c00fcda9eec1a259fd3 |
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font_02_sfnt_off0000f743.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF743 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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