MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress uploads and disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the heuristic findings point to a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b469a9b0bb6---jenorarudexobukarafasopoj.pdf In PDF document text
- http://amirafouad.com/uploaded_files/file/32586547359.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/73528561064.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160900d9ef0ef5---42059053623.pdfIn PDF document text
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/9fb12f32f9c6a5e1e451dcc923fab38c/68428231003.pdfIn PDF document text
- https://gachbinhduong.com/upload/file/5518749238.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b0c88c9b0---20663980533.pdfIn PDF document text
- http://firegallery.ru/img/upload/vivofapufigerujabagigutok.pdfIn PDF document text
- https://mintowncoffee.net/uploads/images/files/bewejuwemosizabesez.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1608dd6b65bfd0---55901549924.pdfIn PDF document text
- https://noihoithanhtuan.com/media/ftp/file/wofelanekidofitusap.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609d65d35dd29---18602910148.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/rumuzubef.pdfIn PDF document text
- https://securityguardsupply.com/php/uploads/file/peropegudulos.pdfIn PDF document text
- https://securityguardsupply.com/php/uploads/file/31543101407.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/ua1cdn5094soar8qpce9nf7u46/62002157747.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/8c94b8ff47d950ad046da17f56579d3d/figeledejuzadama.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=human+dermal+microvascular+endothelial+cellsPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015973.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15973 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00017184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17184 | 16072 bytes |
SHA-256: cab8ceee6dea85bf437db9fdd562b8a0aef74c4066cefe7f2a83a632bdc35db7 |
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font_02_sfnt_off00018692.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18692 | 10792 bytes |
SHA-256: 6944973eb26271ff7a113ad5dc6d074897c6d63e0527fd41bb693e171e88480f |
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font_03_sfnt_off00019f25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19F25 | 19372 bytes |
SHA-256: 5369bd3888a622ddfe7a5365243786674623236f4d3f5b3f0eb9415c462facba |
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