MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was identified as malicious by multiple heuristics and a machine learning classifier, including a critical alert for linking to known malicious redirector infrastructure. It functions as a link farm, containing numerous external links to other PDF files, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The presence of a malicious redirector URL is a high-priority indicator of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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=what+is+the+main+theme+of+harry+potter In PDF document text
- https://cdn-cms.f-static.net/uploads/4379048/normal_6066d1adb7190.pdfIn PDF document text
- https://cdn.sqhk.co/dijowasedop/ibrSjcg/3702517753.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388619/normal_5ff1fad079d39.pdfIn PDF document text
- https://cdn.sqhk.co/difakezil/Brhcfjg/strawberry_box_cake_recipe_with_fresh_strawberries.pdfIn PDF document text
- https://rumikupim.weebly.com/uploads/1/3/5/3/135310872/nibutabobotimonajak.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427085/normal_600969799e7ea.pdfIn PDF document text
- https://fogisavelubid.weebly.com/uploads/1/3/5/2/135299906/9228993.pdfIn PDF document text
- https://cdn.sqhk.co/fagaxirupunu/d8gjicT/85106080716.pdfIn PDF document text
- https://cdn.sqhk.co/xibidodoko/02idhdp/94818716178.pdfIn PDF document text
- https://cdn.sqhk.co/wibononuve/iighlhh/max_volume_booster_paid_apk.pdfIn PDF document text
- https://cdn.sqhk.co/sexubozadifa/YPJLNuy/free_offline_dominos.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4367961/normal_5ff581053ac1a.pdfIn PDF document text
- https://sozizupisez.weebly.com/uploads/1/3/1/8/131872239/nulexuvebogeme-patizotebok-tuwigalesi-jojojewo.pdfIn PDF document text
- https://cdn.sqhk.co/mobirewin/dhchhgi/smart_and_final_fresno_ad.pdfIn PDF document text
- https://bokosemebejira.weebly.com/uploads/1/3/0/8/130813317/diwakubologunow.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461746/normal_600494379b58a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465388/normal_601de64223a07.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481684/normal_6048c8d055843.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387939/normal_5fd644605718c.pdfIn PDF document text
- https://cdn.sqhk.co/verexoleki/QiaQija/43145506265.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tesotiwapax/hp_probook_6570b_drivers_download_windows_7_32_bit.pdfIn PDF document text
- https://s3.amazonaws.com/ninasivol/excel_vba_find_nth_character_in_string.pdfIn PDF document text
- https://s3.amazonaws.com/sajatofubote/sharepoint_template_asset_management_system.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_off000108f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F7 | 5224 bytes |
SHA-256: c4c944ae5442599cb0fc33162aaf732eac77223d3fc4ef57540fc578e1966bb1 |
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font_01_sfnt_off00011aa6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AA6 | 11812 bytes |
SHA-256: 52988c17cff401d26b19cf44856eeeb0e8e91a5d87d75c7be36774be4039b9a5 |
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