MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document functions as a link farm, containing a large number of embedded URLs pointing to various external websites. The primary purpose appears to be SEO manipulation or directing users to potentially malicious content, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristics. The ML classifier and ClamAV detection further support its malicious classification.
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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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://crophysi.ru/strik?utm_term=financial+algebra+workbook+answers In PDF document text
- https://nilijinaxobizag.weebly.com/uploads/1/3/4/3/134356504/f56d0d795.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382414/normal_5fef12ce9e6f0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472200/normal_60219bdf3c346.pdfIn PDF document text
- https://nofemifi.weebly.com/uploads/1/3/2/7/132710694/8432570.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460055/normal_6037e11bd84c4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480170/normal_5fede4382464e.pdfIn PDF document text
- http://zobotalemogi.sportsontheweb.net/17264899125.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459319/normal_5feaef9b7b5bd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465147/normal_5fd84e3c3fb10.pdfIn PDF document text
- https://gatilesajegume.weebly.com/uploads/1/3/1/0/131070678/rarenevutunugemafuxa.pdfIn PDF document text
- https://kigazodiraju.weebly.com/uploads/1/3/4/6/134678535/462872.pdfIn PDF document text
- http://kulotufiw.mypressonline.com/violin_scales_arpeggios.pdfIn PDF document text
- https://fiziwiminika.weebly.com/uploads/1/3/4/6/134686918/0c74c.pdfIn PDF document text
- https://nofixemi.weebly.com/uploads/1/3/6/0/136082439/fonibemekurij-bekodada-sezijubokefige-fipavumala.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476142/normal_60517e4d4c444.pdfIn PDF document text
- https://rodugetimevo.weebly.com/uploads/1/3/1/4/131407281/wamomamuwapoladatuw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4b67404f-136a-46a0-9cf3-151f2d38faab.filesusr.com/ugd/241fd5_b5d1791c8a23497e90b601e205ad7f8b.pdf?index=trueIn PDF document text
- https://ea74ff18-003d-4094-8454-8d7e15e33abb.filesusr.com/ugd/50de67_f759d045cf4e47b8a72c109d351ffbbd.pdf?index=trueIn PDF document text
- https://cfae799c-d04a-4395-b2c2-700dffd2ed5c.filesusr.com/ugd/15504a_d2ee70416d354d92adaa5d7ad0df75ec.pdf?index=trueIn PDF document text
- https://1cdd1dcb-54a5-4750-95ad-c4cce9a68cd1.filesusr.com/ugd/1e32c2_47f1c78ee74c4c21ae409f72aed9df00.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_off0000fdf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF9 | 5216 bytes |
SHA-256: b049580def310d90f65237698d934b44a0f550912d2dd69d641dbbd4dff2bc9e |
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font_01_sfnt_off00010fe1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE1 | 10896 bytes |
SHA-256: 5aa2b9dddc9749cfb2cb1e38ef6d9673c4e4eb0d50137787785b44647fdb3d14 |
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