MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs, such as 'https://dafemum.ru/123?utm_term=act+math+practice+test+pdf+2017', likely serve as lures to phishing sites or malware downloaders.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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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://dafemum.ru/123?utm_term=act+math+practice+test+pdf+2017 PDF link annotation
- https://zazobowelukoki.weebly.com/uploads/1/3/0/9/130969428/6205352.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377377/normal_604079d07f24a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426810/normal_605108c40e6b8.pdfIn PDF document text
- http://gujatun.iblogger.org/alternative_investments_caia.pdfIn PDF document text
- https://liberiloro.weebly.com/uploads/1/3/4/5/134589576/4425779.pdfIn PDF document text
- http://vuwefedope.sportsontheweb.net/how_to_clean_disc_drive_ps4_slim.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408865/normal_5ff81d23088c6.pdfIn PDF document text
- https://xukafubisek.weebly.com/uploads/1/3/4/2/134265855/vofonevijonefutu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471945/normal_604800e01436e.pdfIn PDF document text
- http://xitodefigatefuj.medianewsonline.com/a_level_chemistry_past_papers.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469824/normal_5ffab71b2264c.pdfIn PDF document text
- http://xovitixekewelom.scienceontheweb.net/informantes_claves.pdfIn PDF document text
- http://nefuwumimo.iblogger.org/transparent_hologram_sheet_sticker.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://c6926203-1eb9-401e-9afa-11f61f201807.filesusr.com/ugd/685707_b14c37ed8a7b4714ad8da5df67b7e7ae.pdf?index=trueIn PDF document text
- https://e905e09d-7ddd-4aab-833c-73500e817873.filesusr.com/ugd/f4c08b_cca1a2eeff404fa2a1b85269101751ef.pdf?index=trueIn PDF document text
- http://fokogijisigife.epizy.com/que_es_analfabetismo_digital_en_informatica.pdfIn PDF document text
- http://xadapokudenez.rf.gd/37766544689.pdfIn PDF document text
- http://jewigetujano.epizy.com/79403603261.pdfIn PDF document text
- http://manosotidokef.myartsonline.com/noparubeb.pdfIn PDF document text
- https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_a4a3957c509c46148330905c38261868.pdf?index=trueIn PDF document text
- https://cf176ec6-4820-456b-adf9-61e5f06c968f.filesusr.com/ugd/43d598_5b9dd2da013f4c16a1dcbcf5a50b7aad.pdf?index=trueIn 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_off0000fc7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC7C | 5756 bytes |
SHA-256: bd1f3860dd689de0d0dff6edab312c8899bcc09b6a96efebf0e47a634f5d5afd |
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font_01_sfnt_off00010fee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FEE | 11036 bytes |
SHA-256: 7bd1102ebf8a85f2461ef5ba5944ab3895ff2ddc8b662bd22bc00fc54c7cf19d |
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