MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of embedded links, many of which point to disposable hosting or known malicious redirectors, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or redirecting users to malicious content.
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/award?keyword=romantismo+no+brasil+resumo+pdf In PDF document text
- https://cdn.sqhk.co/vivupedasez/USNF3bB/navakowejamafa.pdfIn PDF document text
- https://lasuresupaka.weebly.com/uploads/1/3/2/6/132683400/risajed-puvofumam-vafamanip-fetorajifewet.pdfIn PDF document text
- http://kefudepoduwudi.sportsontheweb.net/list_of_adjectives_with_meaning.pdfIn PDF document text
- http://help-service-support.com/50731108124ynfrn.pdfIn PDF document text
- https://cdn.sqhk.co/rewazexi/icS3zgi/87689148412.pdfIn PDF document text
- https://cdn.sqhk.co/gemesikexo/ivhiCii/24165528826.pdfIn PDF document text
- http://mybiol.site/possessive_nouns_exercisesr8h8z.pdfIn PDF document text
- http://dajexori.mypressonline.com/jimusirixobebagujuru.pdfIn PDF document text
- https://bemebedutor.weebly.com/uploads/1/3/4/6/134624352/xijefilejagamijigit.pdfIn PDF document text
- http://mofobawosenej.mygamesonline.org/algebraic_expressions_and_identities_class_9.pdfIn PDF document text
- https://dukagalirizaz.weebly.com/uploads/1/3/1/8/131856141/a173bac87f6.pdfIn PDF document text
- http://reform-st.ru/7176126142jay5z.pdfIn PDF document text
- https://cdn.sqhk.co/vuvesanap/jjfaVkf/5966396968.pdfIn PDF document text
- https://kuserivexujeza.weebly.com/uploads/1/3/4/3/134331384/babewigajunebu.pdfIn PDF document text
- https://nevedaroxizewav.weebly.com/uploads/1/3/4/5/134592578/5133065.pdfIn PDF document text
- https://cdn.sqhk.co/dobopejig/ibxxiaJ/bmobile_top_up_coupon_code.pdfIn PDF document text
- https://zuxizakubapepo.weebly.com/uploads/1/3/4/3/134317428/xasukapaw.pdfIn PDF document text
- https://gibejuta.weebly.com/uploads/1/3/0/7/130776113/308656.pdfIn PDF document text
- https://cdn.sqhk.co/wazafanez/hgIgggc/electronic_projects_for_musicians.pdfIn PDF document text
- https://cdn.sqhk.co/vasibejovej/hgFqpnC/54575933914.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://kopolug.myartsonline.com/toyota_camry_ascent_sport_hybrid_2019_review.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_off0000f951.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF951 | 5332 bytes |
SHA-256: 0251c8c50b7480f0e2c7e9b5b05a778b4ba12dbb562075654356fa90e26e2f9c |
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font_01_sfnt_off00010b52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B52 | 13000 bytes |
SHA-256: 08cc37018a4b814e03668bdf35d97901670b8252935ac61f952af99567ee6e47 |
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