MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical finding for a redirector link to 'yafferge.ru'. ML classification and ClamAV also strongly indicate malicious intent. The embedded URL is the primary indicator of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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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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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/123?utm_term=the+natural+movie+quotes+two+lives In PDF document text
- https://cdn.sqhk.co/fowijuseziju/jjlgiCk/22319612628.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420028/normal_6027c8c52d512.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469106/normal_6011643f0d9ac.pdfIn PDF document text
- https://cdn.sqhk.co/vefusujix/fyhbha1/95955928436.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404984/normal_5ff4c5b5a6932.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374956/normal_602408c22573a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407724/normal_5fddbaec4e027.pdfIn PDF document text
- https://jubekufolofifi.weebly.com/uploads/1/3/4/5/134593927/xidodevilubaz-wexafa-zuwolux-jibab.pdfIn PDF document text
- https://cdn.sqhk.co/xumesapaxoku/fKgjGhi/chris_harris_jr_chargers_contract.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4452846/normal_5ff711ad227ba.pdfIn PDF document text
- https://gedesinikus.weebly.com/uploads/1/3/5/3/135323437/jaminimikubemuxutodu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://nimoxorud.epizy.com/heads_of_agreement_document_template.pdfIn PDF document text
- http://gofosuxubajo.epizy.com/jitudosupifumamag.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_off0000e541.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE541 | 5152 bytes |
SHA-256: bd8ae4ff495c701337faa2e2424b8528d1d42b1aef033dc5e847b4421c624e05 |
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font_01_sfnt_off0000f6b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B0 | 10828 bytes |
SHA-256: 481a29c0ab744d582a0c10ef00183e0fc687b8f7a7b5a0253e7c6b3cd8591e24 |
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