MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://dafemum.ru/123?utm_term=format+html+document+notepad%252B%252B In PDF document text
- http://kfcrabota.ru/bulimia_y_anorexia_informacion8hvdf.pdfIn PDF document text
- https://cdn.sqhk.co/rosisole/foTgjjb/99770703189.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378406/normal_600265c890686.pdfIn PDF document text
- http://uaregroup.com/jokepuvewewexuveja61tqx.pdfIn PDF document text
- https://fofelopuvamugav.weebly.com/uploads/1/3/4/7/134716477/gisagero.pdfIn PDF document text
- https://cdn.sqhk.co/lituxopevuk/ygejige/32485149764.pdfIn PDF document text
- http://fly-drive.online/adp_company_interview_questions_and_answers_for_fresherssy1go.pdfIn PDF document text
- http://roskycnmx.com/how_long_does_it_take_for_a_waffle_to_cook5t7gg.pdfIn PDF document text
- https://fanamavikere.weebly.com/uploads/1/3/4/6/134610997/befijaw.pdfIn PDF document text
- https://sikalejewop.weebly.com/uploads/1/3/5/3/135341852/vapotujugebowed_vojivobiluwu_ruxuxukedenug.pdfIn PDF document text
- https://turarizamagux.weebly.com/uploads/1/3/1/4/131453837/ginovebamaluwuweg.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418970/normal_5ffd017264cc7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4386848/normal_5fd03968d664d.pdfIn PDF document text
- https://gegirugotosizuk.weebly.com/uploads/1/3/5/3/135397722/6323716.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/e299c17c-0098-4f47-b8ad-6cd409c7460f/how_to_get_alexa_to_open_netflix_on_samsung_tv.pdfIn PDF document text
- https://59b7e61f-9850-45ee-add2-e9646db267e4.filesusr.com/ugd/5b9365_3d4966b8a9a341cead25f362097fef8d.pdf?index=trueIn PDF document text
- https://2f2ab42d-e0b4-4bd3-aa50-2430da1ff5fc.filesusr.com/ugd/eaf48f_bf12c3fcedfe460e80dd66bb7dce41e3.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/45bc7616-b798-4d77-9b0e-1fafe3705637/37038140302.pdfIn PDF document text
- https://8909b315-4d59-4940-aabf-0fdaa532e0ad.filesusr.com/ugd/4542d9_f863cfd56d5d490ba3d441087675a111.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7ff108a9-9b6e-48a0-8d31-4beed63a6fb7/boy_scout_merit_badge_sash_pin.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_off0000dd06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD06 | 5092 bytes |
SHA-256: 2727c8e8d795471287fac5725b3bfe301054def9670699b23c51ecdcd3025407 |
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font_01_sfnt_off0000ee25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE25 | 10228 bytes |
SHA-256: c1be1149001a6fa1fc3e181c015eeed138c3c02ba89d479b2871ec1e4a8be052 |
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