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 0.9998
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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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://nipisod.ru/strik?utm_term=asus+p7p55d-e+lx+manual+pdf PDF link annotation
- http://wurilozi.scienceontheweb.net/bsc_pcm_syllabus.pdfIn PDF document text
- http://kufejat.sportsontheweb.net/gigowetesetuzibixob.pdfIn PDF document text
- http://makululi.iblogger.org/fefulekazojabuvuxawol.pdfIn PDF document text
- https://mamasikixatok.weebly.com/uploads/1/3/5/9/135961158/9865552.pdfIn PDF document text
- https://nawuwisenaz.weebly.com/uploads/1/3/5/3/135318134/8c1ebec19402dfe.pdfIn PDF document text
- https://mixuvuweti.weebly.com/uploads/1/3/1/4/131483588/notagixe.pdfIn PDF document text
- http://wivevemeb.scienceontheweb.net/89222994421.pdfIn PDF document text
- https://www.comx.co.zaIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fd0ef26f-7b8f-4c91-b3b2-19f7ec93487a.filesusr.com/ugd/4174bf_8e1ea58224de4e3a961e66c49806a279.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zabejuvijolu/what_is_artificial_neural_network.pdfIn PDF document text
- https://944456f3-75eb-4cd6-bbfd-656b3713ada1.filesusr.com/ugd/2c8d66_70ee8ccfc60e4f2295c203539b74e6e7.pdf?index=trueIn PDF document text
- https://1160a196-6e18-49bd-931c-438029629b47.filesusr.com/ugd/40338c_a27ace65f70b46feb471d81c5334f767.pdf?index=trueIn PDF document text
- https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_d703b3f97eb14bc0b48f376d56bd089f.pdf?index=trueIn PDF document text
- https://ced6af22-cf5f-4df0-9cd6-2d424634d287.filesusr.com/ugd/3eed2b_524405d2ab1b44318bedfe2a4edf532b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/banula/fresno_bee_fishing_report_sept_25.pdfIn PDF document text
- https://a1b876fd-e98f-4594-996d-fc523792ae9e.filesusr.com/ugd/efcbf0_a6c17608e55d4f2f9f6313d9577d51b1.pdf?index=trueIn PDF document text
- https://ac402fee-74f4-49a6-b5a4-6a03c6a057de.filesusr.com/ugd/b0cd75_790bf2a504564e2cb745a5dd934d821b.pdf?index=trueIn PDF document text
- http://kokibitumoxa.epizy.com/magnesium_ribbon_experiment_lab_report.pdfIn PDF document text
- https://8f1c0ae7-1ba6-4c51-a623-4d29f5e3aebb.filesusr.com/ugd/c1615c_b6a98a4325674c57abc073744600dd02.pdf?index=trueIn PDF document text
- https://6ddb26ad-aa8e-4a3e-a925-5cef6fc035e1.filesusr.com/ugd/d3d820_53ce8cf6183e431391af84e47d99c856.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pajeriramal/dovumoji.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
- 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_off000137ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137EC | 5384 bytes |
SHA-256: 25233efcba705964b6dda320ffe81a2e76fc4408fadf6616e8ad9b7772c576ee |
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font_01_sfnt_off00014a4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A4D | 12976 bytes |
SHA-256: e220f5811a141bd7462a07982e3ae210a51055ccea4e70734deac4e322f4f02b |
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font_02_sfnt_off000174e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x174E6 | 16204 bytes |
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449 |
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