MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. One of the primary URLs, https://leonvi.ru/strik?utm_term=respironics+remstar+pro+2+manual, is presented in a way that mimics search results, likely to deceive users into clicking through to malicious or spam content.
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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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://leonvi.ru/strik?utm_term=respironics+remstar+pro+2+manual PDF link annotation
- https://cdn-cms.f-static.net/uploads/4464873/normal_601185bed3a16.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447251/normal_601baca3bdc08.pdfIn PDF document text
- https://kusafowagu.weebly.com/uploads/1/3/1/8/131871480/7287352.pdfIn PDF document text
- https://pasorizafam.weebly.com/uploads/1/3/4/0/134096756/vevot-gozibubezazojol-viwagisozodib.pdfIn PDF document text
- https://vegirizixe.weebly.com/uploads/1/3/4/7/134716682/8a03a8d20a1ee.pdfIn PDF document text
- https://veraweno.weebly.com/uploads/1/3/0/7/130739577/zotalutijoda_guwoxerixujifuk.pdfIn PDF document text
- https://rixajijinuroje.weebly.com/uploads/1/3/4/4/134473879/4d79d60.pdfIn PDF document text
- https://rijevolokawuja.weebly.com/uploads/1/3/4/6/134661742/3141934.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4457570/normal_5fef69d153b47.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426679/normal_6034a1e1cddec.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://tagowavez.epizy.com/aphidius_matricariae.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b95e0a1-daf3-4a5e-aadd-f75d4e727f0c/the_adventures_of_huckleberry_finn_film_1993.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c874035d-29de-4a11-856b-9ec1f1780f2c/how_to_use_log_and_antilog_table_in_hindi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b7cba3d-06c7-45cc-9fdd-4f4ba4ef7cad/jisenebedubokoju.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0242455d-ee62-4143-b481-74ff57cb3cbd/30925806963.pdfIn PDF document text
- http://wavedada.epizy.com/temaligidilafuwawasewux.pdfIn PDF document text
- http://lifotag.rf.gd/supafeli.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8afd662a-fbc4-410b-b1c0-fda373a451c6/78844951217.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/46caca6e-22f8-4bfb-bc74-2456591412cf/how_to_set_up_bowflex_sport.pdfIn PDF document text
- http://rawozenagi.epizy.com/xelemisaxuveb.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000129fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129FA | 5100 bytes |
SHA-256: ac128fb6341d111228fa936afcb0cfe14f772ae5d85d4133936e1566a21b00a6 |
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font_01_sfnt_off00013b34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B34 | 11288 bytes |
SHA-256: c41b6db36a2a976f5e235a50a48f92b98d41fed1ed64c6d073402acd52e057ab |
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font_02_sfnt_off00016166.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16166 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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