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 0.9997
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://bologen.ru/strik?utm_term=edifier+r12u+stereo+computer+bookshelf+speakers+%2528black%2529 PDF link annotation
- http://joritirumag.mypressonline.com/how_to_start_a_introduction_paragraph_for_an_essay.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391636/normal_5fdc52360cb6d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473388/normal_5fff59126e847.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387713/normal_604a5ce21382b.pdfIn PDF document text
- http://nezesepibakow.iblogger.org/83410913687.pdfIn PDF document text
- http://worakozun.22web.org/fifejunebudafefubatosazif.pdfIn PDF document text
- http://xosuxifareg.22web.org/29524853370.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://48e6b720-b653-4920-beb0-7ef171ab6ab9.filesusr.com/ugd/d9d1f5_2abff5c3349044d384eef5da9851c89c.pdf?index=trueIn PDF document text
- https://f05e0dbb-21cf-40ea-8b71-00b8d6f49a3b.filesusr.com/ugd/b09e1d_feb32dd0a6c1458696f96e0ba620db73.pdf?index=trueIn PDF document text
- http://todizegi.epizy.com/92781299982.pdfIn PDF document text
- http://keregimuw.onlinewebshop.net/aromaticity_quiz.pdfIn PDF document text
- https://4e4608fd-868e-43f5-b6ba-14e5e4b50785.filesusr.com/ugd/b1f235_6dfd74d0532240b08ee8b3f17bdf83a4.pdf?index=trueIn PDF document text
- https://dc688580-c0ec-4ade-910b-7abffd870ab4.filesusr.com/ugd/096b61_cb8a1001fa8547fe8a3c3ee179e8ce11.pdf?index=trueIn PDF document text
- https://c335e157-9962-4e43-983a-f5fcf491c4e2.filesusr.com/ugd/a09b09_33696323bb8449888f2beb1d2f7fafa1.pdf?index=trueIn PDF document text
- https://fdb4f28e-c637-431f-967d-457feef73efb.filesusr.com/ugd/cf5aa9_6da10ba008f844a5992ebc51ab33db2f.pdf?index=trueIn PDF document text
- https://8ac5c8e1-9174-427d-95c2-90bebb9f105a.filesusr.com/ugd/44b221_d49b29e132044b4ba88648e50de36b11.pdf?index=trueIn PDF document text
- https://4192d618-ecd7-4808-8485-efd4d6773ded.filesusr.com/ugd/17a5db_65b4d881a5cf45a7b48e8440905c46b0.pdf?index=trueIn PDF document text
- https://d5f1d3db-1598-48d0-a061-764c190a6564.filesusr.com/ugd/866690_8fbfc1e02c6b4d729343a4c2932d9220.pdf?index=trueIn PDF document text
- https://bc260b4e-efc2-469d-9102-9c7234992d76.filesusr.com/ugd/b1b3ad_4b961f32f36741c4a177d633d3dcf529.pdf?index=trueIn PDF document text
- https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_2ef4dfe696934d5ea3db385e7de6a1cb.pdf?index=trueIn PDF document text
- http://lojupefiduk.epizy.com/best_endoscope_camera_app_for_android.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_off0000e080.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE080 | 5896 bytes |
SHA-256: 65e14eb01780b985dd0ecc4461c6451ca59742d8b56c7867b1528cb7f1bea8b9 |
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font_01_sfnt_off0000f475.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF475 | 11092 bytes |
SHA-256: 5576f73b95e5dd4d872fd4d3703edc7aae43f6a0dd60f9e93e19963e340a0e09 |
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