MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.007 JavaScript
The PDF document contains multiple heuristics indicating malicious intent, including PDF_SEO_DISPOSABLE_LINK_FARM and SE_CLICKFIX, which suggest social engineering to lure the user into clicking external links. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URLs point to potentially malicious domains, and the document body, though obfuscated, contains references to a 'hard reset' which could be part of a lure. No scripts were extracted, but the overall structure and heuristics point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://leonvi.ru/strik?utm_term=swann+dvr8-4580v+hard+reset PDF link annotation
- http://rumepado.mypressonline.com/thyroid_gland_structure_and_function.pdfIn PDF document text
- http://gazajujana.mygamesonline.org/bharat_2020_year_book.pdfIn PDF document text
- http://trastenmyqort.online/694265717784cdml.pdfIn PDF document text
- http://beautysale.site/27714426556z4vkf.pdfIn PDF document text
- http://static-start.top/90330610501qv2tl.pdfIn PDF document text
- http://prizinsta.info/the_first_stage_of_the_industrial_revolution_involved_production_ofcirz3.pdfIn PDF document text
- http://asta-stroy.ru/chaucer_the_knight_s_talet5kcx.pdfIn PDF document text
- http://peromopativej.mypressonline.com/calcutta_university_registration_form.pdfIn PDF document text
- http://narovomesizi.medianewsonline.com/nalirexofomozusi.pdfIn PDF document text
- http://paruxezogu.mygamesonline.org/vatijivepere.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://raxajabidadida.onlinewebshop.net/commonly_confused_words_worksheet_1_answers_usatestprep.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72959409-7f15-4e4f-b9c0-120a46af7b42/biddeford_electric_blanket_warranty.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4850dcaa-f18d-4916-bd34-1bf87741e2dc/77349298660.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cab5cc5f-83b1-4704-955d-3872735a6333/554460762.pdfIn PDF document text
- https://75cc4b12-69da-4024-8422-75f9303faa99.filesusr.com/ugd/d6c222_acb8ca4845ba42adae9f7f9388a14163.pdf?index=trueIn PDF document text
- https://235a1a37-2bc9-4d3b-8f1d-d3952ad9fba8.filesusr.com/ugd/3111f7_90a5d183232f4a38bb5f35629e7d277d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4e406408-19e3-4eb3-8e96-61e5c242bc3e/vufizoxowidafug.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_off0000e179.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE179 | 5716 bytes |
SHA-256: 47e5488c6b76ff96acfd19dc1abbda7177331eadbfdf53059046cd22e1099ffb |
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font_01_sfnt_off0000f50e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF50E | 10808 bytes |
SHA-256: 38cdbda1d29b29232567b045fb46d1b78d04c967f7bebfdf3602efee7348978a |
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