MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links pointing to external PDF files, many of which are hosted on disposable domains or known malicious redirectors. This behavior is indicative of a link farm, often used for SEO manipulation or to lure users to phishing sites. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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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://dafemum.ru/strik?utm_term=essay+prompts+for+high+school+freshman In PDF document text
- http://kuvezowepo.scienceontheweb.net/how_to_use_analog_multimeter_tester.pdfIn PDF document text
- http://xemokajoled.medianewsonline.com/solving_equations_worksheet_6th_grade.pdfIn PDF document text
- https://tobalewaluwe.weebly.com/uploads/1/3/4/4/134437424/zakarenifoz.pdfIn PDF document text
- https://vujebitaj.weebly.com/uploads/1/3/4/7/134759162/razurikamoxegedamebo.pdfIn PDF document text
- http://flowerport.store/31333024601j96a3.pdfIn PDF document text
- https://velawoturo.weebly.com/uploads/1/3/4/4/134478902/ralol.pdfIn PDF document text
- http://soul-felt.com/kutitumetanixazawiwuraztnjcr.pdfIn PDF document text
- http://leyloften.online/ford_mustang_maintenance_manual68xmo.pdfIn PDF document text
- https://mumizajasaliso.weebly.com/uploads/1/3/4/5/134598274/pilupekaguv.pdfIn PDF document text
- http://thechambre.xyz/free_printable_may_2018_calendar_templatehw4ul.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://e6676b24-921d-4f57-8fca-beda98688f3c.filesusr.com/ugd/144d27_5c5e4cb0274d4120a5da43d19c6e2c77.pdf?index=trueIn PDF document text
- https://68fdcf0a-b1f0-4758-9edf-48d2be6d990b.filesusr.com/ugd/ac51ce_7e3581223c344a06b5575c29f6bf5695.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pokorevalaxex/25713045302.pdfIn PDF document text
- https://006b50d4-ad2a-4261-8279-34542eb0d7b0.filesusr.com/ugd/a640e9_70c516ded2954d07bb78981e44335e3f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7d3374a4-9362-4395-903d-1df0cf5b4335/sejew.pdfIn PDF document text
- https://1cf095b7-1d29-4152-b82c-7733cf7ba0c7.filesusr.com/ugd/c1de29_552f88c119154e8ca9daa927f58f5cf5.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/werowibovezoje/fapuvu.pdfIn PDF document text
- https://s3.amazonaws.com/bejenosugede/jesekedosuzimezimi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d42724a-01c3-492d-8422-e9b677583c80/text_structure_worksheet_9.pdfIn PDF document text
- http://dirazonun.myartsonline.com/radujupilobojupuw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ac5e324-9091-40f4-9a59-99adb8ed80d9/2020_toyota_camry_trd_hp.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/57479141-abaa-455f-9e2e-8e2c70345e92/lukus.pdfIn PDF document text
- http://ratobewiwigu.atwebpages.com/antibiotic_resistance_mechanisms_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9bf273a7-a6ac-43c3-af64-7783fb8805e9/partidos_de_extrema_derecha_en_mexico.pdfIn PDF document text
- https://s3.amazonaws.com/xoferuzu/98474986678.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_off00017c72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C72 | 5276 bytes |
SHA-256: c247a7b69d92e6dce4172197f1be7ba88d4403353d5988a4b4d4cff43967efe2 |
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font_01_sfnt_off00018e45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18E45 | 11152 bytes |
SHA-256: 0d7a017efb66d60befdd6fc4a4e02269c9c42cf17e9a8130fa1d4a3bdaa4a4ff |
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font_02_sfnt_off0001b3e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B3E9 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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