MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document exhibits characteristics of a phishing lure, specifically a payment redirection scam, as indicated by the 'SE_PAYMENT_REDIRECT_LURE' heuristic. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to obscure the ultimate destination. The primary IOC is the URL 'https://mezovuduw.ru/strik?utm_term=can+we+check+covid+19+report+online', which is likely the initial point of contact for the malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://mezovuduw.ru/strik?utm_term=can+we+check+covid+19+report+online PDF link annotation
- https://cdn-cms.f-static.net/uploads/4482849/normal_60664818b3ab0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366028/normal_5ffb8aa231c90.pdfIn PDF document text
- https://cdn.sqhk.co/kowaziwaso/jsXohjp/zifexexagesit.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501965/normal_605f4aa595708.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403270/normal_5fdfa72b835ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472182/normal_604b6c545ad49.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366007/normal_5ffe0f15daaf6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424672/normal_605cabb530c4a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467027/normal_5fc939d297fd7.pdfIn PDF document text
- https://cdn.sqhk.co/vomisape/Ohjjdjj/1558301174.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467278/normal_5febd6159cd2d.pdfIn PDF document text
- https://cdn.sqhk.co/dajusonas/0ify6je/nunoxoseka.pdfIn PDF document text
- https://cdn.sqhk.co/wugunifikezu/iephdlv/uc_browser_mini_old_apk_free_download.pdfIn PDF document text
- https://cdn.sqhk.co/lizubenesowi/gcihiiz/cat_flipping_the_bird_pic.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366646/normal_5fd680db0c8bb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://8316a071-1c81-4729-bbc9-bb84f51c1359.filesusr.com/ugd/b2ba6b_a5340d67218248ff908595cc0f913756.pdf?index=trueIn PDF document text
- http://xopemaw.rf.gd/sazexonekanafokixub.pdfIn PDF document text
- https://f6ce3cfb-f922-470c-9e0e-eaf724001b0e.filesusr.com/ugd/defcb2_1d18d6468b0946059597abf9b6575141.pdf?index=trueIn PDF document text
- https://168d2a81-f750-40c6-a653-3787650f980d.filesusr.com/ugd/3bcfef_c195ebbe239045db821edc085c7f192e.pdf?index=trueIn PDF document text
- http://satonavuka.rf.gd/navy_uniform_allowance_2020.pdfIn PDF document text
- https://45e41439-46a4-4c97-84f0-155cfeda4cef.filesusr.com/ugd/9d7ad9_8332a42116094f119eca6c3a1d641368.pdf?index=trueIn PDF document text
- http://fudinurozoxesa.rf.gd/pemebedopan.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_off0000f02c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02C | 5312 bytes |
SHA-256: 5ed3d8a26660572014501e770c48ec6046dfd8660cd3918ca4d6f17e8351f178 |
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font_01_sfnt_off00010251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10251 | 10684 bytes |
SHA-256: 9d9668ac05bd977901e0fe286a61f920df848ce7b086eb280b7cb33370258e9d |
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