MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO poisoning tactic. The primary URL, 'https://jacksth.ru/strik?utm_term=brother+mfc+495cw+printer+wireless+setup', indicates a lure related to printer setup. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. No scripts were extracted, but the structure and URL patterns strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://jacksth.ru/strik?utm_term=brother+mfc+495cw+printer+wireless+setup PDF link annotation
- https://fotagajumiveba.weebly.com/uploads/1/3/1/4/131411987/begasiwajasimud.pdfIn PDF document text
- https://juvumumirogo.weebly.com/uploads/1/3/5/3/135313675/wemopa_remufoboragelu_lesal.pdfIn PDF document text
- https://fupebabo.weebly.com/uploads/1/3/4/6/134601971/buforuxafi.pdfIn PDF document text
- https://xojovirasada.weebly.com/uploads/1/3/1/6/131637125/mevaf.pdfIn PDF document text
- https://xapeposatu.weebly.com/uploads/1/3/1/4/131437079/b11dd814ef45.pdfIn PDF document text
- https://tegipogelow.weebly.com/uploads/1/3/1/4/131407588/jewezofitirive.pdfIn PDF document text
- https://pomapufawupufus.weebly.com/uploads/1/3/5/3/135397804/dadotaxid_mejasur_tabenisowisusa_vomuguzavimow.pdfIn PDF document text
- https://mabalavorejeg.weebly.com/uploads/1/3/4/7/134769590/dcb4856f6c4e9.pdfIn PDF document text
- https://rixotojar.weebly.com/uploads/1/3/0/9/130969533/bomaduvava-dagejafagoji-jepofuvafevefas.pdfIn PDF document text
- https://vejejalerejoji.weebly.com/uploads/1/3/4/6/134600164/9278630.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://7e6b698e-d56f-4a21-8c48-787e2f6d39f4.filesusr.com/ugd/7836c9_7c98c695960b4cb7b11d2f20a9ee53cb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c54737d2-8296-414f-b545-d3fa6d895955/12665640892.pdfIn PDF document text
- https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_a835fc8074be491a94ea84abdcdb2b31.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f9b762dc-7d14-4336-9aef-e5d6f3f92d45/gunosepotapetuzunu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8adba6d2-6573-42be-825c-545738dddb79/marketing_plan_process_steps.pdfIn PDF document text
- https://6b52f5a6-db44-4d3e-8337-ab33c729cb13.filesusr.com/ugd/f4de5e_3d20881d2a0246b596117972c9835088.pdf?index=trueIn PDF document text
- https://a0f1d9c0-ea46-4e0e-9383-d87711d3127f.filesusr.com/ugd/1e3fb7_db36c9c88a2a48228af1b805abb5fb7d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5417e843-9d6d-4632-98d7-df65e4e64cf6/fologalofujurumo.pdfIn PDF document text
- https://a9864912-ad24-422b-99f3-2d90f7703507.filesusr.com/ugd/d6af85_9b6ec72db99a4242b020dbe451ba9e4a.pdf?index=trueIn PDF document text
- https://64b67c6e-fbbd-4787-add8-9ed3e274c95c.filesusr.com/ugd/eb6612_748c0f8e51334719b10386ddcdbec047.pdf?index=trueIn PDF document text
- https://fe2b84af-b373-48e0-a714-f820169e3fe9.filesusr.com/ugd/ed1d2e_5940ae333ad348edab58f5c344b91260.pdf?index=trueIn 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_off0000f43e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF43E | 5556 bytes |
SHA-256: c9c294a691a733927032f1fdf270fc5f93354035c00d0c16e90fbd2aef40f8a7 |
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font_01_sfnt_off0001071a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1071A | 11168 bytes |
SHA-256: 31fe7106509d6c72402a327d4a104b00c98316c67eadf9d1ce9b1ba44f0873eb |
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