MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ML classifiers and ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One URL, 'https://chcial.ru/pbw?utm_term=campbell+biology+in+focus+second+edition+pdf', appears to be a redirector. While no scripts were explicitly extracted, the PDF structure and extensive link farm indicate a likely attempt to lure users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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External URI info PDF_URIPDF contains an external URL action
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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://chcial.ru/pbw?utm_term=campbell+biology+in+focus+second+edition+pdf PDF link annotation
- https://tulopudegiwidal.weebly.com/uploads/1/3/0/7/130739196/pomaruxi.pdfIn PDF document text
- https://fukagopesuzidad.weebly.com/uploads/1/3/1/3/131381553/90a945f24968.pdfIn PDF document text
- https://balalowomave.weebly.com/uploads/1/3/0/7/130738893/a55be4bd67.pdfIn PDF document text
- https://jijutuvexezepor.weebly.com/uploads/1/3/4/4/134444828/sedavuv.pdfIn PDF document text
- https://suluxeposinugu.weebly.com/uploads/1/3/4/6/134634013/caa0c1916.pdfIn PDF document text
- https://wogaxorabamogak.weebly.com/uploads/1/3/4/4/134400234/4577263.pdfIn PDF document text
- https://zasawebisev.weebly.com/uploads/1/3/4/8/134865024/da3a735d222c34.pdfIn PDF document text
- https://nidenuriju.weebly.com/uploads/1/3/0/9/130969265/1d3556a.pdfIn PDF document text
- https://semomekavo.weebly.com/uploads/1/3/4/3/134373715/mitufe_juromu.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/5ed54dab-6948-4bfb-9fa7-589a95f5cf76/56852304174.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e243b437-0b2d-4f62-8c0e-9ffb7846da2c/58208049414.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d68ddccf-c016-4e0f-ae8d-cf89cb9cdf3e/where_can_i_get_my_ged_for_free_near_me.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3e35250d-f7b5-4bf4-b71f-9e6e27e8f414/what_is_gold_color_personality.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/06ee8d7a-f8bc-46a5-9b91-c65331faa0d3/betty_azar_basic_english_grammar_workbook_free_download.pdfIn PDF document text
- http://pinurakus.pbworks.com/w/file/fetch/144723942/operating_system_deitel_download.pdfIn PDF document text
- http://rivikixizub.pbworks.com/f/54824922330.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1765cc60-b003-4ffb-8b43-7b0d00379ab8/el_coran_en_espaol.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b25eabe-5970-4cd7-805b-998ed84596ce/how_to_use_an_old_sears_kenmore_sewing_machine.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b21ca9e5-7084-4dce-85c7-bb49ce76175c/73556318771.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aba6e5e5-76c0-4677-9b9b-e911a52b2c07/17732323877.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_off0001595b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1595B | 5528 bytes |
SHA-256: 4a8270e3f250e28ec547852c767b59a803680bdd00d51f50400d70363fe053c0 |
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font_01_sfnt_off00016c18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16C18 | 11028 bytes |
SHA-256: 31f926c51907a3aad1b6845cc2ae4433d13337bd8c7715c4ffd8408720e2250f |
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