MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, appears to be related to educational worksheets, which is likely a lure to disguise the malicious intent of redirecting users to potentially harmful external 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://leonvi.ru/123?utm_term=non+flowering+plants+ks2+worksheet PDF link annotation
- https://cdn-cms.f-static.net/uploads/4372702/normal_6056913092076.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468571/normal_60521ee63d87c.pdfIn PDF document text
- https://vejexuwelukilik.weebly.com/uploads/1/3/5/3/135340180/3008827.pdfIn PDF document text
- https://tiselewo.weebly.com/uploads/1/3/1/6/131606631/migurasodofamokaner.pdfIn PDF document text
- https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/d5871e52af5.pdfIn PDF document text
- https://zasoliwex.weebly.com/uploads/1/3/5/3/135318241/5103874859c8c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/364093d4-e9e7-4f0d-8ab6-c79487047954/gisanoguzilusinituw.pdfIn PDF document text
- http://jebusolole.pbworks.com/f/wumozib.pdfIn PDF document text
- http://dijakezepo.pbworks.com/w/file/fetch/144437298/best_hollywood_movie_download_in_hindi_720p.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d2c906f6-1d77-4391-b112-735a6d9096fa/51407919685.pdfIn PDF document text
- http://nigezid.pbworks.com/f/interpreting_double_bar_graphs_worksheet.pdfIn PDF document text
- http://gosirata.pbworks.com/w/file/fetch/144452046/hotels_near_me_with_jacuzzi_in_room_nj.pdfIn PDF document text
- http://nuxawakaxaz.pbworks.com/w/file/fetch/144497052/how_to_cite_the_declaration_of_independence_in_text_mla.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cdc9b643-c10f-4af6-bf13-6e3f4daacbaf/39584336601.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc786175-a947-46cd-95ef-ad70adda7647/jaxofatebexapifiwutik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b0a0fb7-12cd-4ced-843f-fe9fc1cd9ba4/jomuneda.pdfIn PDF document text
- http://lulimogosan.pbworks.com/w/file/fetch/144510108/android_oyun_club_gta_v_cretsiz_indir.pdfIn PDF document text
- http://pokuwatosat.pbworks.com/w/file/fetch/144556509/descriptive_words_for_music_sounds.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7342786-c766-4222-affb-d32ebfb1a8b8/sivebumumutere.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e167.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE167 | 5208 bytes |
SHA-256: 07d41790df0031e371a7e742818f22fe2365b21084d9b8dbc4221e5fbd708548 |
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font_01_sfnt_off0000f332.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF332 | 10408 bytes |
SHA-256: cc189b9862efdd8b2fb3763a6672f7bbc26a349a613df43061c60a2f0b570963 |
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font_02_sfnt_off000116f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F9 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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