MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The embedded URLs, such as 'https://zajinet.ru/strik?utm_term=free+math+worksheets+for+college+students', are likely used to redirect users to malicious content or phishing pages. No scripts were extracted, but the PDF structure and link farm behavior are indicative of a malicious intent to drive traffic to potentially harmful 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://zajinet.ru/strik?utm_term=free+math+worksheets+for+college+students PDF link annotation
- https://wabibazo.weebly.com/uploads/1/3/5/2/135295983/migivefafukuru.pdfIn PDF document text
- https://vasinurevesodux.weebly.com/uploads/1/3/4/6/134605286/e8e3d46.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388165/normal_5fe000e6e43f5.pdfIn PDF document text
- https://cdn.sqhk.co/pixafosabow/hkgiDhf/break_it_down_song_descendants.pdfIn PDF document text
- https://mobuverafawez.weebly.com/uploads/1/3/5/3/135346795/bezidunuragipe_morakonidotepa_xalituwitawudo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366957/normal_6020fb1348442.pdfIn PDF document text
- https://napajudiweji.weebly.com/uploads/1/3/4/3/134316113/napuj-majunotivusise.pdfIn PDF document text
- https://cdn.sqhk.co/renosopezare/Sghevha/letterboxd_for_tv.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4380876/normal_5fcca099b924c.pdfIn PDF document text
- https://cdn.sqhk.co/bopibege/jcijKgi/zodave.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420612/normal_5fdc298ea8331.pdfIn PDF document text
- https://cdn.sqhk.co/wimiwupo/wSNFDjf/57652828760.pdfIn PDF document text
- https://dovasivenumi.weebly.com/uploads/1/3/5/9/135965427/jikukivigujimuxorij.pdfIn PDF document text
- https://gumakamatiz.weebly.com/uploads/1/3/4/6/134600955/nofiwux-pusofip-bifatusi-sedekunowa.pdfIn PDF document text
- https://lirodute.weebly.com/uploads/1/3/1/8/131871659/rovenasofowi.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://s3.amazonaws.com/xubifupi/pazabunaxidu.pdfIn PDF document text
- https://s3.amazonaws.com/xunilukegez/executive_assistant_job_interview_questions_and_answers.pdfIn PDF document text
- https://s3.amazonaws.com/fikuvine/photosynthesis_worksheet_answers_part_analysis.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_off0000e9fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9FA | 5380 bytes |
SHA-256: ebd282bbf772486df077368f1e112a62419efbe9d26bb8f1cb83c97f4155faee |
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font_01_sfnt_off0000fc2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC2D | 10828 bytes |
SHA-256: 2aa7b6c29146418ff2b367be0f45247e3ea1073215eb035f91a53736d9335910 |
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font_02_sfnt_off00012099.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12099 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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