MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://vilenefex.ru/123?utm_term=microscope+parts+and+their+functions+worksheet PDF link annotation
- https://cdn-cms.f-static.net/uploads/4483854/normal_5fda89bc36a94.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369638/normal_605674c33e8f4.pdfIn PDF document text
- https://bukanunale.weebly.com/uploads/1/3/5/9/135974016/lusitutigoji.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412895/normal_604b9dfa41fe8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460263/normal_5fe73404757a5.pdfIn PDF document text
- https://jimakujomeda.weebly.com/uploads/1/3/4/4/134438408/jimolijatumidin_vezinikalibedi.pdfIn PDF document text
- https://moxetutatag.weebly.com/uploads/1/3/4/2/134234950/podejovaki.pdfIn PDF document text
- https://vedifejoroda.weebly.com/uploads/1/3/4/5/134521361/9925a56fc.pdfIn PDF document text
- https://jozurukezareta.weebly.com/uploads/1/3/4/7/134741488/1239480.pdfIn PDF document text
- https://xozojijeb.weebly.com/uploads/1/3/4/4/134436315/suguredek-xonepo-jaguzaduzoratu.pdfIn PDF document text
- https://dafizoxov.weebly.com/uploads/1/3/5/3/135309439/3f97a.pdfIn PDF document text
- https://kirenokasanav.weebly.com/uploads/1/3/4/4/134445236/5900535.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/332367ba-b007-4d67-97a1-e67b2cf42232/zojaluwuwogojopu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9053a1b0-a217-459a-b9be-657f829efd8c/61729963251.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/acee1f45-1b74-4cad-b633-aebd3959e74b/hp_elitebook_folio_9480m_drivers_windows_7_32_bit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11440916-5152-4622-8c7a-790f40ec24f4/how_to_adjust_bipap_settings.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b22db11e-3dcd-4f95-b2a7-2313c82bff8a/42378162265.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe004139-e280-4119-89e5-42ec5d126ecf/10613255232.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ff56f7f9-1b74-45b8-ad32-73f1b813f20c/5329507811.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb98e9b9-71bc-44df-ae91-11fb7ab3c785/magic_tree_house_1_reading_level.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b28f0e17-c5e3-4297-a358-45f379656463/32736083025.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6e22df60-6523-43e9-866e-61ec9dfc4276/97584006549.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://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_off0000ea48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA48 | 5372 bytes |
SHA-256: 10c57219749d84921c1a41d647912766425046501ea7561fb9956d9fdafc654c |
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font_01_sfnt_off0000fca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA9 | 10780 bytes |
SHA-256: 243937b0c1c52fb713826088c12fe6fa0b1d1eedccefbc86e27eeb83ecae155a |
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