MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with one prominent URL pointing to 'kuzutuzo.ru', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by identifying the PDF as a link farm on disposable hosting, likely to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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/strik?utm_term=buy+generac+pwrcell
- https://cdn-cms.f-static.net/uploads/4449178/normal_6048342400d37.pdf
- http://galabogenezoso.getenjoyment.net/58241027174.pdf
- https://cdn-cms.f-static.net/uploads/4451929/normal_603b161b020b7.pdf
- http://vajokopopozikem.medianewsonline.com/25070117512.pdf
- https://cdn-cms.f-static.net/uploads/4473030/normal_6022fc345636f.pdf
- https://nopifabuda.weebly.com/uploads/1/3/4/6/134693299/8178552.pdf
- https://lakafoxure.weebly.com/uploads/1/3/4/2/134266374/mareju.pdf
- https://static.s123-cdn-static.com/uploads/4503033/normal_60052278ea440.pdf
- https://pasorizafam.weebly.com/uploads/1/3/4/0/134096756/tejaravape_lepokotusowim.pdf
- http://jarevine.mywebcommunity.org/the_witcher_3_switch_guide_book.pdf
- https://zarimuxeve.weebly.com/uploads/1/3/4/8/134897304/fivudidupubele_mevoxozuwezap.pdf
- https://static.s123-cdn-static.com/uploads/4414153/normal_5fe2028f0ea30.pdf
- https://static.s123-cdn-static.com/uploads/4377113/normal_5fed17aee891b.pdf
- https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/602532.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://waxaravibew.epizy.com/corynebacterium_diphtheriae.pdf
- http://movasedumanepe.onlinewebshop.net/bsc_2nd_sem_chemistry_question_papers_2020.pdf
- http://merekum.rf.gd/atonia_definicion.pdf
- https://uploads.strikinglycdn.com/files/77ad8837-782f-41fd-a4d6-7db28b41841d/16047334610.pdf
- http://novizem.rf.gd/yesterday_weather_report_in_tamilnadu.pdf
- https://uploads.strikinglycdn.com/files/5d2f727a-0258-4fbc-92b6-255a71c5d05a/31127316673.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fb7c.binba6ca46de02685cfa0a99423e1d89de181021d6b403e013676b90150de278cf3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB7C | 4812 bytes |
font_01_sfnt_off00010bf5.bin937c55eea2d984a97724b05224d1eb57a7dbbe0e81ed1cd0c681752a2d7e8091 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF5 | 11748 bytes |
font_02_sfnt_off000133cb.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133CB | 4324 bytes |
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