MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URIs, including one pointing to 'kuzutuzo.ru', suggests the document is part of a link farm designed to redirect users to potentially harmful content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a tactic to obscure the true destination. While no scripts were explicitly extracted, the PDF structure itself likely contains embedded JavaScript to facilitate the redirection, aligning with T1059.007.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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 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/123?utm_term=meps+color+blind+test+answers+2018 PDF link annotation
- https://cdn.sqhk.co/babijuvawov/32SaZcJ/sudoku_247_expert.pdfIn PDF document text
- https://luwusimoxoxaxa.weebly.com/uploads/1/3/1/4/131453453/jigosisej.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469641/normal_60189f5f3797b.pdfIn PDF document text
- https://mewurotimopu.weebly.com/uploads/1/3/1/3/131381658/lodapox-jamebi-dajamejomuxer-bujixepebutod.pdfIn PDF document text
- https://cdn.sqhk.co/kurafuso/JTjbSgh/zewizipiweji.pdfIn PDF document text
- https://fizobadajavene.weebly.com/uploads/1/3/4/4/134492874/6041269.pdfIn PDF document text
- https://cdn.sqhk.co/magatile/DKjjjht/4851739416.pdfIn PDF document text
- http://francobusiness.com/28511989319rkrpt.pdfIn PDF document text
- https://toroxamaje.weebly.com/uploads/1/3/4/0/134017611/pilepagewovibiduso.pdfIn PDF document text
- http://natlab.ru/global_competitiveness_report_world_economic_forum_2015fv2ka.pdfIn PDF document text
- https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/wedidifogupot_bojomale_zikal.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450249/normal_60335bab91caa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416495/normal_602fbe4114305.pdfIn PDF document text
- http://idealicaufficiale.website/toro_power_clear_721_e_electric_startm5pzc.pdfIn PDF document text
- https://cdn.sqhk.co/zezegawutogu/hjtvjSl/super_smash_clash_brothers.pdfIn PDF document text
- https://cdn.sqhk.co/tuxonewebuke/JCFjjfN/nitufujatudiwurutunuzegom.pdfIn PDF document text
- http://kzrovk.xyz/hot_work_permit_template_western_australiav9m6l.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374372/normal_5fc57c98a8da0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/643940f1-a997-4c9b-8671-982e808ead1d/which_statements_below_are_true_regarding_permanent_and_temporary_accounts_check_all_that_apply.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5dd6e2e9-6b4f-4cd5-9475-a659cba89add/hardest_crossfit_workouts_without_weights.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9aaba684-1315-49f3-b3b1-1acac5824f86/diwebemonulaje.pdfIn PDF document text
- http://sosivaji.rf.gd/dominant_and_counter_narrative_examples.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f1c89918-7906-4c94-a27e-2ee6449f7289/how_much_does_a_quiznos_franchise_cost.pdfIn PDF document text
- http://tirisesixulisas.rf.gd/acetone_msds_sheets.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_off0000e68a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE68A | 5824 bytes |
SHA-256: 38d829b771ae3362e1d4393dc312f208cd7e7a8f652134a1c3f7c67ce705bd3a |
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font_01_sfnt_off0000fa84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA84 | 11104 bytes |
SHA-256: 44aa6ce9243241c029936d047d865ab394f7fa9328634746482fb556f9152e7e |
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