MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO spam operation. One of the primary links, 'https://kuzutuzo.ru/strik?utm_term=can+fitbit+surge+band+be+replaced', indicates a lure related to Fitbit Surge band replacement, likely to drive traffic to malicious or ad-heavy sites. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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 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/strik?utm_term=can+fitbit+surge+band+be+replaced PDF link annotation
- https://cdn.sqhk.co/teposodigar/gNnAhiF/pokemon_shuffle_mobile_mod.pdfIn PDF document text
- https://gudeworidive.weebly.com/uploads/1/3/4/7/134767917/914175.pdfIn PDF document text
- https://cdn.sqhk.co/wesuwajil/74hjieX/snowflake_stock_ipo_ticker.pdfIn PDF document text
- https://fimezerix.weebly.com/uploads/1/3/4/4/134478386/getizuxubox.pdfIn PDF document text
- https://cdn.sqhk.co/xagogudexo/lTMNiec/cookieswirlc_videos_of_her_playing_roblox.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490934/normal_6037dcfc88e18.pdfIn PDF document text
- https://cdn.sqhk.co/riwaxagi/gekAa1q/zotofunumajixofewi.pdfIn PDF document text
- https://nitagupivef.weebly.com/uploads/1/3/4/3/134342099/sugibifoneb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383131/normal_600c077b8a726.pdfIn PDF document text
- https://cdn.sqhk.co/faxenukev/bihGWjg/biduzireko.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tevigotu/annke_dn81r_offline.pdfIn PDF document text
- https://56a7be67-7dca-40da-a973-69ad719fb73b.filesusr.com/ugd/fedf23_9f8a50d22fe34d6486815cad5cf04f27.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kokesatodixon/62727482494.pdfIn PDF document text
- https://s3.amazonaws.com/tinezedu/38845690592.pdfIn PDF document text
- https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_e043229e046440fc91c2d42318b482cc.pdf?index=trueIn PDF document text
- https://db6a684c-bd73-4a61-997a-17040cc1d896.filesusr.com/ugd/bbbb20_146e8fa47661403097a6f0113d4bc0de.pdf?index=trueIn PDF document text
- https://5c2df1de-05ea-4e17-9aa3-38adc7ce3153.filesusr.com/ugd/ddd609_08f924f558ea42db869622ac7b1f35a3.pdf?index=trueIn PDF document text
- https://770ad53b-b55e-4e58-b1eb-3709f41304f7.filesusr.com/ugd/98e298_422f5be1f6e14ce2bd7f784547414f01.pdf?index=trueIn PDF document text
- https://e905e09d-7ddd-4aab-833c-73500e817873.filesusr.com/ugd/f4c08b_caa17df73898406d8b44be1f7627eeb4.pdf?index=trueIn PDF document text
- https://b3079848-b07e-4d89-9244-05dfa5dd91fe.filesusr.com/ugd/3ab5ed_6e669b43bed14ee7934d1a0a5ef37cb1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/subopukomanaw/29348777201.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_off0000f540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF540 | 5368 bytes |
SHA-256: bbf822794a4da71dcc10d5bc6dc2d5ce50e5f6e470f0c2cf092d923b2d605462 |
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font_01_sfnt_off00010786.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10786 | 10936 bytes |
SHA-256: 862f5cb7a0474d777f91a3b0c974aec1e51de3268b0a9e567bcb7f19d7e5f759 |
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