MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file is identified as malicious due to its function as a link farm, containing numerous embedded URLs that lead to other PDF documents. One of these URLs, 'https://dafemum.ru/strik?utm_term=a+wild+sheep+chase+dnd', is flagged as a known malicious redirector. The ML classifier and ClamAV detection further support the malicious classification, indicating a phishing or trojan-like behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/strik?utm_term=a+wild+sheep+chase+dnd In PDF document text
- https://s3.amazonaws.com/gavobawum/1988011525.pdfIn PDF document text
- http://fejekadiwoxobiz.getenjoyment.net/cantaloupe_island_drums.pdfIn PDF document text
- https://venozosuvizulul.weebly.com/uploads/1/3/0/8/130814909/c2dfc2f8.pdfIn PDF document text
- https://gawufuxawejax.weebly.com/uploads/1/3/1/8/131855981/4329251.pdfIn PDF document text
- https://s3.amazonaws.com/wavunot/editable_bracket_template_2015.pdfIn PDF document text
- http://lodomujimujug.mywebcommunity.org/best_business_development_job_titles.pdfIn PDF document text
- https://rakevuxex.weebly.com/uploads/1/3/4/0/134040666/a04ae716.pdfIn PDF document text
- http://wivevemeb.scienceontheweb.net/99033467828.pdfIn PDF document text
- http://pusewuvi.medianewsonline.com/xekezezaz.pdfIn PDF document text
- http://rezexepenoma.scienceontheweb.net/how_do_you_reset_a_robertshaw_thermostat.pdfIn PDF document text
- http://busimaderule.mywebcommunity.org/96978351492.pdfIn PDF document text
- http://lemafesopeposuz.mywebcommunity.org/92947160725.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/39128cb6-0d93-46b2-a396-9fcd5f9fb3a9/voxuwuvogipotejora.pdfIn PDF document text
- http://gajopule.myartsonline.com/birepelewinil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b05b59f3-e04b-436f-9645-defbc3cb270c/the_memory_string.pdfIn PDF document text
- https://4de1274e-a26b-4e71-a0d1-d86f0cfee7ee.filesusr.com/ugd/ee4d88_fa243aa3030b49689dcd5e9e65a884f5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2b68ce44-a488-48ce-aa1c-4bfe4cc777fb/how_to_start_a_love_novel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd3b4502-2c93-498b-853d-53aad2592b39/sharp_tv_wont_turn_on_flashing_red_light.pdfIn PDF document text
- https://034618a9-9b39-4f41-ad18-95bca1d1c80b.filesusr.com/ugd/48d9a1_5105ede2c716469f964ee4e5ddcbaa59.pdf?index=trueIn PDF document text
- http://kimawawasero.onlinewebshop.net/wejumo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/908849e8-1b40-460d-a150-801e0e7bbc91/matlab_loop_over_matrix_rows.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_off0000d276.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD276 | 5148 bytes |
SHA-256: bf429b96e9e0ba94c95839bf8d6f471c9a58aac8f8cefcb462cd2b090ac16800 |
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font_01_sfnt_off0000e408.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE408 | 11008 bytes |
SHA-256: ba4fb0855539d6bc2383902fe7c928b804d6afee87d90c525f8a151e6e708ecb |
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