MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links, many pointing to disposable hosting, characteristic of a link farm. One of these links, 'https://crophysi.ru/wix?keyword=monroe+5752+cross+reference', is identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lead users to phishing or malware-hosting sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://crophysi.ru/wix?keyword=monroe+5752+cross+reference In PDF document text
- https://static.s123-cdn-static.com/uploads/4456377/normal_5ff75eed06415.pdfIn PDF document text
- http://jikifikizipi.22web.org/98796391850.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375194/normal_5fd2d0d162547.pdfIn PDF document text
- https://cdn.sqhk.co/denobafopum/ijcsMyf/tinapujuzizofe.pdfIn PDF document text
- https://cdn.sqhk.co/totimujid/Xibgehf/space_flight_simulator_1._5._1._3_mod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465557/normal_600b284b47cc4.pdfIn PDF document text
- https://cdn.sqhk.co/kivipemo/gciihgY/luzelak.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417222/normal_600e57645daae.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/5cd98172-3294-4823-a2b2-6c0dc7becf53/snapper_self_propelled_lawn_mower_repair.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9156a180-f7ca-47c3-bfda-735349c1816a/portia_the_merchant_of_venice_character_analysis.pdfIn PDF document text
- http://vazavaxajude.rf.gd/informant_definition_death_certificate.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0d82a93-4ca7-4823-9c4a-d3a310fc8653/masari.pdfIn PDF document text
- http://towuvoti.epizy.com/a_raisin_in_the_sun_filler.pdfIn PDF document text
- https://s3.amazonaws.com/popilo/2005_sea_ray_180_sport_owners_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0fcfffd1-ae02-4b94-88ad-24fa6898c3df/dd_beyond_discount_code_2020.pdfIn PDF document text
- http://xofududegotu.epizy.com/kadusidukutereze.pdfIn PDF document text
- https://s3.amazonaws.com/fedure/achilles_tendonitis_patient_advisor.pdfIn PDF document text
- https://f3c4034a-4a94-4c47-b6c5-0445626d7bf8.filesusr.com/ugd/655f09_80638a2565db48739b45c36820b00119.pdf?index=trueIn PDF document text
- https://c7972686-9310-4d97-8ac3-15e828887225.filesusr.com/ugd/8a419d_2d45434dd07743b2811e3054f7b34060.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6bf4a5c4-5cf5-4e0a-a0e4-7f7f8435cf09/how_to_beat_wing_chun.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_off0000ed6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6D | 4972 bytes |
SHA-256: 226296df33b7825dcad737b2ea3c18efd5874216ecb688b8c5413de949bfcdb3 |
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font_01_sfnt_off0000fe8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE8A | 11308 bytes |
SHA-256: ef8ae617d5373a4062d56b0c93f9db02af6609141d639035710d26632955db69 |
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