MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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=essentials+of+firefighting+6th+edition+pdf+chapter+3 PDF link annotation
- https://xovaxavirot.weebly.com/uploads/1/3/4/8/134853903/xoturowuliwulavag.pdfIn PDF document text
- https://gojefofowuf.weebly.com/uploads/1/3/4/5/134596001/3d1088.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481825/normal_5ffc4f7c32c9b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4394082/normal_602ef345e2934.pdfIn PDF document text
- https://nodimawajovuri.weebly.com/uploads/1/3/4/4/134431691/gapujoburerik.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401517/normal_5fca3c620d2c8.pdfIn PDF document text
- https://vakigosem.weebly.com/uploads/1/3/4/4/134480352/jazef-gorimumudef-zelopozopupena.pdfIn PDF document text
- https://xisaxori.weebly.com/uploads/1/3/5/3/135324705/zajutowow.pdfIn PDF document text
- https://pagowabelada.weebly.com/uploads/1/3/0/8/130874520/guzino.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451950/normal_6012b1e447824.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501509/normal_6061d9e530e7d.pdfIn PDF document text
- https://vuguzunorofina.weebly.com/uploads/1/3/4/3/134322364/majufeluw_dogux_jazisanuxumax.pdfIn PDF document text
- https://gepolurur.weebly.com/uploads/1/3/4/6/134610134/lubefug-suzakuporujaxa-jazat.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/7c0725d1-8f97-4610-9d49-cc987e591612/what_age_is_the_book_eragon_for.pdfIn PDF document text
- http://wamotarirup.pbworks.com/w/file/fetch/144421986/45139472685.pdfIn PDF document text
- http://negovijalulu.pbworks.com/f/how_to_write_bank_request_letter.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/615174cd-689a-4e2f-8138-27a5fc53efab/the_leap_by_louise_erdrich.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2fd4d809-8de4-45c6-8f2b-8d45f2053919/sotulafefiluxuwapuxota.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/611352d8-8009-4ef4-86fd-ea8b80db326c/the_way_of_the_superior_man_by_david_deida.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24334013-0ac1-40ef-8704-e7914ac65289/65335141570.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16f1f4cf-878f-4a00-8e7f-086fe2ffd7c3/bach_little_prelude_in_c_major.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a7280a2-10ff-4805-a93e-081937a03056/kevorosalevejapikodofop.pdfIn PDF document text
- http://natizasex.pbworks.com/w/file/fetch/144412494/python_programming_darshan_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/543a0ebf-b4a3-480d-af25-c3bd60de2362/lavekoso.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_off0000d5ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5BA | 5692 bytes |
SHA-256: 47a9769740b579589c63c63d2d67de6b5cea12d4d2952dbf1993796ba3598a4c |
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font_01_sfnt_off0000e91b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE91B | 10564 bytes |
SHA-256: 0cead56343a447436bcec8d1add7cedaac74264605d4cab8acbfbd5a668e4911 |
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