MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by multiple heuristics, including ML classification and ClamAV. It contains a significant number of external links, with one heuristic specifically flagging it as a 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM'. The primary malicious URL identified is https://kuzutuzo.ru/wix?keyword=bubble+tank+2+hacked, which is likely used to host phishing content or redirect to further malicious sites. No scripts were extracted, but the structure suggests an attempt to lure users through a link farm.
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://kuzutuzo.ru/wix?keyword=bubble+tank+2+hacked PDF link annotation
- https://cdn.sqhk.co/remozemot/hiihtol/rufejosimajaroxatoza.pdfIn PDF document text
- https://cdn.sqhk.co/welosezu/6ihif5g/thumb_fighter_christmas_unblocked.pdfIn PDF document text
- https://cdn.sqhk.co/xixujipum/gjghjWv/top_10_cordless_vacuum_cleaners_2019.pdfIn PDF document text
- https://cdn.sqhk.co/vixukose/hegegia/comic_stars_fighting_games_lol.pdfIn PDF document text
- http://wunuwivibegajim.22web.org/sermones_cristianos_evangelicos.pdfIn PDF document text
- http://sajezexutumesu.iblogger.org/wakezipewi.pdfIn PDF document text
- https://cdn.sqhk.co/fogobewataja/1Wp6gc9/offroad_outlaws_money_hack_october_2020.pdfIn PDF document text
- http://jejidizifobimir.iblogger.org/81780633839.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://720c7b34-a033-4bf0-83ea-6be17de98aa2.filesusr.com/ugd/03ef8e_e5f51ccdea8d47bfbd74ec9fc84c558e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f1c13c05-2582-4c40-9484-d67ffcb841f8/12904688715.pdfIn PDF document text
- http://lemujiv.epizy.com/asus_rt-ac68u_merlin_aimesh.pdfIn PDF document text
- https://1b65b899-5fad-42bd-af9e-a3fb1d6a4c80.filesusr.com/ugd/a2ebd8_25ef8925019947ad88ec5365b3beed3a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5fca9516-ca28-4c47-a852-6106780e8318/marcel_proust__la_recherche_du_temps_perdu_avis.pdfIn PDF document text
- https://7abbf572-6989-4614-8246-9d5ba34cd238.filesusr.com/ugd/af841b_1342d6de3b3e48289ae63e5776fdc87e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/dc6ec752-0a94-4a13-88b3-d8fe5462a2ef/22800954113.pdfIn PDF document text
- https://e9b66cc5-9289-431c-8f17-6739e1cd2d88.filesusr.com/ugd/c8f33b_0858729dc47e4c0eba6067e7b8985eef.pdf?index=trueIn PDF document text
- http://mezasijov.epizy.com/importance_of_systematics_in_biology.pdfIn PDF document text
- https://09d7e2b9-79a3-4876-9e00-73a1ba4263a4.filesusr.com/ugd/92fcd7_520e189461f341b3a5d56bba4dd4394f.pdf?index=trueIn PDF document text
- http://ninonasoligu.rf.gd/10308086014.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_off0000e7f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F1 | 5140 bytes |
SHA-256: b11f269a043173a84401bfaafd8d97a20ce18a733079d2a3040160fb6988d2d8 |
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font_01_sfnt_off0000f96a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF96A | 10704 bytes |
SHA-256: 3e6fa540d3205f83de7df51927afac0c7e3d132f8a3db5835564a82a85e9cf37 |
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