MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a link farm designed to appear as a free download for Autodesk Inventor 2013, a common lure for phishing or malware distribution. Several heuristics indicate the PDF is part of a link farm hosted on compromised or disposable domains, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://haustechnik-hagenauer.at/93331609222.pdf In PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0fe8054fb2---tosobinamipolozate.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/95888291003.pdfIn PDF document text
- https://webtechnocrats.com/upload/file/70216987520.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607656c5607da---91636479614.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607526518b304---10117186068.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/f78a2182395bdb8e7b5d98609919f792/19584448781.pdfIn PDF document text
- http://ridgefieldpark1967.com/clients/3/39/39eebdc8797e30ee23d4fd57d071fd44/File/39255461333.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836f54ba9fb---gupopafinopimivelego.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d1e3efcd2---muwewugaga.pdfIn PDF document text
- https://grupahatak.pl/admin/_fck_files/file/gajevozubibe.pdfIn PDF document text
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/6a99e1648fb110c37af7cc90c7d7cb96/41086153707.pdfIn PDF document text
- http://hatowo.com/app/webroot/uploads/files/28943609587.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160b090b397ed4---1609221200.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/jshrden8dlscvcn3degb3c58l2/64038056383.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=autodesk+inventor+2013+free+download+full+versionPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ce5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE5A | 5596 bytes |
SHA-256: 6dfbe38dbb21d0f53993260c174b488379a2914e97c0f3597e6e05a29ee5c0ae |
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font_01_sfnt_off0000e194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE194 | 11204 bytes |
SHA-256: 4435c92df061b7fc402c183b8f97d61a77bce3f3439c5943ca4fc20eb3603122 |
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