MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to disposable hosting, and one critical link to 'yafferge.ru' which is flagged as malicious. This indicates a link farm designed to redirect users to potentially harmful content, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://yafferge.ru/strik?utm_term=brookstone+projector+manual In PDF document text
- https://wurilulisewanid.weebly.com/uploads/1/3/4/7/134728532/1eb9bd6.pdfIn PDF document text
- http://joteruzawareba.iblogger.org/when_nietzsche_wept_movie_egybest.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467945/normal_601dbb09924f5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421776/normal_6064b5e11ce8e.pdfIn PDF document text
- https://gugukufetufa.weebly.com/uploads/1/3/4/3/134337187/petonutaw.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456399/normal_600d9a2ad2731.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427529/normal_601b8f4544d51.pdfIn PDF document text
- https://menolalosixoj.weebly.com/uploads/1/3/4/7/134714047/xikonewasa-xojapovikujij.pdfIn PDF document text
- https://pusotovoxidelo.weebly.com/uploads/1/3/1/6/131637553/dofodemebugabutuj.pdfIn PDF document text
- https://nuwusiran.weebly.com/uploads/1/3/5/3/135321198/8964627.pdfIn PDF document text
- http://wovegibexakebof.iblogger.org/classifying_real_numbers_worksheet_key.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_0db6242dfb164ba6b2467d6eca307612.pdf?index=trueIn PDF document text
- https://1a413096-4115-453c-84a6-e19f3d0a1e7a.filesusr.com/ugd/4a2d03_b15f9a9e22ee46c29ab3aa8b33079f92.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d30e1124-27d0-410f-974e-5231d4383841/65749522359.pdfIn PDF document text
- http://zazofekodoxu.rf.gd/69085330097.pdfIn PDF document text
- https://3fa5a103-d2c1-4c51-98c8-4a56640721a8.filesusr.com/ugd/e3c460_30ba4fe624d04a9fabd13d1e71d9b49e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2686096e-541f-465a-be36-6c9d9f4e44a3/49388216381.pdfIn PDF document text
- https://3b87a2b8-2d13-4e6d-acc4-cbba57692a59.filesusr.com/ugd/50988c_56c2167dcd9b49e7896ec3e917aa0281.pdf?index=trueIn PDF document text
- https://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_7574fed2a45347779ed8bd0404d0fd44.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b79d6d27-243e-40ae-b604-f32b99fdaf61/cual_es_la_importancia_de_la_matematica_financiera_en_la_vida_diaria.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/212e3bd8-d70c-47d3-85d2-563563118a74/55588228167.pdfIn PDF document text
- http://towupew.epizy.com/2630186489.pdfIn PDF document text
- http://batofudinub.epizy.com/drenagem_linfatica_manual_leduc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/acfc515a-083c-4abf-a871-cc50bc93aeed/ge_logiq_e10_ultrasound_probes.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_off00010dea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DEA | 2828 bytes |
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8 |
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font_01_sfnt_off000117e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117E4 | 5268 bytes |
SHA-256: 60d27f6952c8846deb0e81ecade70997cc816ea54bf68f5fb94b0632aa91c4dc |
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font_02_sfnt_off000129bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129BB | 10460 bytes |
SHA-256: 635316cf59016cecc8a24fdd38b64c252bd9dc41d8e869e260a892b1aba28f22 |
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