MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://pelibifir.ru/award?keyword=juxtaglomerular+apparatus+pdf', which is likely part of a phishing or malware distribution scheme. Additionally, a heuristic detected a link farm with numerous external PDF links, including 'http://jadogog.epizy.com/98371394202.pdf', suggesting an attempt to manipulate search engine results or distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9679
Heuristics 5
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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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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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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://pelibifir.ru/award?keyword=juxtaglomerular+apparatus+pdf
- https://cdn-cms.f-static.net/uploads/4386094/normal_6062914b01759.pdf
- https://cdn-cms.f-static.net/uploads/4450898/normal_6022ce222e496.pdf
- https://static.s123-cdn-static.com/uploads/4498404/normal_5ffb039dcd800.pdf
- https://cdn-cms.f-static.net/uploads/4382003/normal_5fdc05f40960a.pdf
- https://static.s123-cdn-static.com/uploads/4503524/normal_60008a199e0f3.pdf
- https://cdn-cms.f-static.net/uploads/4452612/normal_606481e87bdf1.pdf
- https://static.s123-cdn-static.com/uploads/4458849/normal_6003d7b9b87f2.pdf
- https://static.s123-cdn-static.com/uploads/4498645/normal_5ff007884fc4d.pdf
- http://niludop.22web.org/darozumizu.pdf
- https://cdn-cms.f-static.net/uploads/4365567/normal_603a6bb84d688.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://jadogog.epizy.com/98371394202.pdf
- https://73099f28-10d5-4558-98a1-2f8dc61f1a2f.filesusr.com/ugd/f62eaa_6912c534586b46318fa9d704b61c1b7e.pdf?index=true
- http://gitogopafo.epizy.com/newapexinamedebeve.pdf
- https://76bf09fe-c378-4d6f-baa9-beaf48595a8b.filesusr.com/ugd/61567a_9efcd9a967244efba4443189586863ad.pdf?index=true
- https://933afb0c-60ca-4ff4-ba38-e7c804ca925d.filesusr.com/ugd/941881_53d69d22da9444d0a5fc50a8e45a47c4.pdf?index=true
- http://zoladev.epizy.com/7866479215.pdf
- https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_a1c6a8c62148433daa26e6ecc8e0d117.pdf?index=true
- https://09972071-4174-499b-90b1-de3619f59f53.filesusr.com/ugd/d1c05f_b3eb401a29ec4d789bbb23dd29ba6636.pdf?index=true
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e1e7.bin6ec0c0a1f1f9eee6124f0186c581020b1865b725dbe3e4a72f70a5d7a69a63e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E7 | 5420 bytes |
font_01_sfnt_off0000f445.binf77b60538ab3bca52531f271ccc14265ff8061851adc2c0923dfb558b749dfef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF445 | 10820 bytes |
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