MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable domains, indicating a link farm or SEO poisoning tactic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The embedded URLs, such as http://esmoney.site/ocl2_electron_dot_structurez3ba0.pdf, are indicative of a downloader or redirection mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://leonvi.ru/strik?utm_term=us+stock+market+closed+good+friday PDF link annotation
- http://esmoney.site/ocl2_electron_dot_structurez3ba0.pdfIn PDF document text
- http://about-central.com/75313527200lulb7.pdfIn PDF document text
- http://fipopogukol.iblogger.org/orca_oxford_bookworms_starters.pdfIn PDF document text
- http://rerubin.space/laura_knight-jadczykgs0x4.pdfIn PDF document text
- http://artdebug.site/suxibufijewo584bq.pdfIn PDF document text
- http://presalon.xyz/76211884038m6dq0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d8d078ea-10ec-4787-8e21-ef6e32b87a24.filesusr.com/ugd/8f6098_9a9086901d4740c49de9bdd5c43197e6.pdf?index=trueIn PDF document text
- https://13fad4bf-7224-44b3-802b-16842e97d241.filesusr.com/ugd/b14664_0a4be0195d7949a68f213390315b822b.pdf?index=trueIn PDF document text
- https://4d75d3c9-3a4d-4df6-84ab-e48b83d723e5.filesusr.com/ugd/cdb50c_d31ce25ac5d344b0925556499b47ecf1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tevigotu/44697511145.pdfIn PDF document text
- https://1ba6f066-89d4-4445-b8a9-08a6de046ef2.filesusr.com/ugd/d40554_414cf06434484545948c09c0b74593fa.pdf?index=trueIn PDF document text
- https://35e1cc1d-5f6c-4a41-9b1b-b9ae8dddc97a.filesusr.com/ugd/351eee_7462b1962c554de9a4b18470c4d7df95.pdf?index=trueIn PDF document text
- http://mexefesu.epizy.com/kiromogadiwobikinir.pdfIn PDF document text
- http://sokevigaku.rf.gd/dofukogor.pdfIn PDF document text
- https://eee7329a-c4d5-4508-a8fd-a8ba515f7d9f.filesusr.com/ugd/5ed802_664e3ea335f24f2ca5662020732d8091.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/libusamagowuvo/work_uniforms_online_australia.pdfIn PDF document text
- https://s3.amazonaws.com/dazuxujepov/escala_de_braden_q_para_pediatria.pdfIn PDF document text
- https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_ae6c56cd941b45a882f2cbe1eb3c5858.pdf?index=trueIn PDF document text
- https://4edd92ed-4e96-4c3d-a837-a16c7246ae9e.filesusr.com/ugd/7c3149_0335b86295ef41e799d991c69573d20c.pdf?index=trueIn PDF document text
- https://235a1a37-2bc9-4d3b-8f1d-d3952ad9fba8.filesusr.com/ugd/3111f7_e79f9f5f80c54d45bdc525ecc84198b0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rejiner/cabinet_ministers_of_rajasthan_2019.pdfIn PDF document text
- http://sipikoz.epizy.com/zitebevozusufine.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_off000100a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A8 | 5496 bytes |
SHA-256: 7ccb64c3216eb2fbad1d5f45c966d5b25ac78e1b8e838f2c37ac24864074234a |
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font_01_sfnt_off0001134e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1134E | 11608 bytes |
SHA-256: 6ff8cee0eb9a0b4560d7bcbb43b3350a33ffbdab0f71b7ad81b5dfb5d18808d8 |
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