MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links, many pointing to disposable hosting services, suggesting a link farm designed to distribute traffic. One of the linked URLs, 'https://dafemum.ru/strik?utm_term=conversion+chiffre+lettre+espagnol', is identified as a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://dafemum.ru/strik?utm_term=conversion+chiffre+lettre+espagnol In PDF document text
- https://renixopofofof.weebly.com/uploads/1/3/4/4/134486295/7390883.pdfIn PDF document text
- https://sebeguresed.weebly.com/uploads/1/3/5/9/135966133/xazatozetufe.pdfIn PDF document text
- https://wosodaguv.weebly.com/uploads/1/3/4/5/134590300/cca2eb5964.pdfIn PDF document text
- https://tofeniva.weebly.com/uploads/1/3/4/6/134625175/f89fff27f2890f.pdfIn PDF document text
- https://lerorenoj.weebly.com/uploads/1/3/5/3/135390996/sulaxizafigezoj.pdfIn PDF document text
- https://devoligoj.weebly.com/uploads/1/3/7/5/137509872/tusiro.pdfIn PDF document text
- https://xujajogasugoni.weebly.com/uploads/1/3/4/5/134514057/farimonuzu.pdfIn PDF document text
- https://namazowofurap.weebly.com/uploads/1/3/4/3/134372349/78750bc9d.pdfIn PDF document text
- https://xabesokexiba.weebly.com/uploads/1/3/4/3/134327988/vesusani-mijep.pdfIn PDF document text
- https://fekodajitor.weebly.com/uploads/1/3/0/8/130874258/b8f0975d3c96c.pdfIn PDF document text
- https://segukikiregitep.weebly.com/uploads/1/3/1/8/131856439/tozoravib.pdfIn PDF document text
- https://tefewijinoxo.weebly.com/uploads/1/3/4/8/134881123/8937915.pdfIn PDF document text
- https://makodute.weebly.com/uploads/1/3/4/6/134649936/3648803.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/c8f33c6a-cffb-4711-be44-f5200919274f/xadul.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39513f4d-d16c-4338-8651-5402ce8a5ff1/what_is_considered_babylon_today.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/67e2fc96-a681-4d23-8672-6fa5b47e1702/61079561133.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/164826bc-c5c1-43bc-b815-512e20b8c059/polk_psw10_phase_setting.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e571a65-ed9d-44c8-85df-599084d011f4/repuv.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_off0000edc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC5 | 5240 bytes |
SHA-256: 29f8276280b1462eec03232bf8429362806854a5968448ff96be42f5b0a5b4be |
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font_01_sfnt_off0000ffa3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA3 | 12180 bytes |
SHA-256: 1c0b68bb5ccad5c81a2e35f7cf059c0a67ac36900225339ad99b935af9881b6c |
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