MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to disposable domains and redirector infrastructure, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature. The primary attack pattern observed is the use of a PDF document as a lure to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://crophysi.ru/strik?utm_term=strawweight+female+mma In PDF document text
- http://mukoxadetovewo.66ghz.com/20_most_difficult_interview_questions_and_answers.pdfIn PDF document text
- https://pugulewex.weebly.com/uploads/1/3/1/4/131406013/b96a9e0be779.pdfIn PDF document text
- https://xevibobi.weebly.com/uploads/1/3/4/6/134683071/b4afc3372766209.pdfIn PDF document text
- http://koteyarn.moscow/vmware_hcl_serverqgh4y.pdfIn PDF document text
- https://jamibada.weebly.com/uploads/1/3/1/1/131164428/kuvim.pdfIn PDF document text
- http://mebel-albero.ru/rukukisipvtbt.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369916/normal_60121ed53fd77.pdfIn PDF document text
- https://cdn.sqhk.co/kopilixa/DheheQT/90616279983.pdfIn PDF document text
- http://luminar3-download.xyz/45863008889ot97h.pdfIn PDF document text
- https://vubufogos.weebly.com/uploads/1/3/4/7/134766152/mobifum.pdfIn PDF document text
- http://mebel-albero.ru/catering_company_profile_templatez8llh.pdfIn PDF document text
- https://cdn.sqhk.co/pazaxefuma/hgpfekB/harry_potter_hogwarts_mystery_clubs_dragon.pdfIn PDF document text
- https://fafamamijusoma.weebly.com/uploads/1/3/4/3/134371196/xunugifosazugaj.pdfIn PDF document text
- https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/fcdc0950afbc2d8.pdfIn PDF document text
- https://lumodafudewose.weebly.com/uploads/1/3/4/4/134480169/85ed66deb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://semiwexojexudu.epizy.com/sap_crystal_report_for_visual_studio_2019.pdfIn PDF document text
- http://kajomeki.epizy.com/65877376940.pdfIn PDF document text
- http://xudadadof.epizy.com/damigoxodutemelujuxe.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e40e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE40E | 3416 bytes |
SHA-256: f0c72651be07e832fdb89fa35488ab5637d67832e6d4fa3c2a341f7a6cf70da9 |
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font_01_sfnt_off0000f04e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04E | 5200 bytes |
SHA-256: 68d375edfe5ee0dbd06f473359c3f1f3d4be5945d6ba701f1d3e79606ee99157 |
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font_02_sfnt_off000101ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101EA | 10992 bytes |
SHA-256: ec13295158418ce5c859e1059d5aa451ce0ffc2425d6897551a69b141fa3c21e |
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font_03_sfnt_off000127ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127AC | 5064 bytes |
SHA-256: a750ae015efaefd1dd79346255eb14c583a6c25b69603de6be56fd075afecc31 |
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