MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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://kuzutuzo.ru/wix?keyword=a+chemist%2527s+guide+to+density+functional+theory PDF link annotation
- https://cdn.sqhk.co/jawosuzexe/jbhjRe3/cleaning_checklist_template_word_free.pdfIn PDF document text
- https://cdn.sqhk.co/subesanodag/8TheBMw/small_led_flashlight_keychain.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470521/normal_6050aa0e587bd.pdfIn PDF document text
- https://cdn.sqhk.co/miloxuso/fHHghjd/34668230142.pdfIn PDF document text
- https://cdn.sqhk.co/wajuletixex/dhcAih5/infinite_loop_definition_computer_science.pdfIn PDF document text
- https://cdn.sqhk.co/nilulugaj/j1Kw4H5/fundidora_park_monterrey_nuevo_leon_mexico.pdfIn PDF document text
- https://cdn.sqhk.co/vorinugobol/hbkp2ge/kefizalotatuvedadafumet.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4460076/normal_5febb0358faea.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3c3b6f52-20a2-448a-be11-eec5930c502f.filesusr.com/ugd/0ca786_64dcea2a52a64650923c8136cdc23c22.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d6b29f80-c0fc-4912-9811-e18a1a889ae2/rccg_sunday_school_teachers_manual_10th_january_2021.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/29ef75d9-c40e-47ab-861c-53aae7e85c18/69140481280.pdfIn PDF document text
- https://e86c6366-0652-46cb-9e1f-5633a133dba9.filesusr.com/ugd/510a18_6a4f8aec279a424b963b3ac1444d55cb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ca3ac079-e8b9-4625-953f-bc596f13e98c/what_led_to_the_red_scare_in_the_1920s.pdfIn PDF document text
- http://gepikadagutuv.epizy.com/capricho_arabe_piano.pdfIn PDF document text
- http://nelevevupa.rf.gd/3267118029.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f6fcfd76-4860-4129-b5fc-bdec3c10a9a4/learn_networking_step_by_step_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fa9c1305-8054-437a-b07b-f0d9d22499c5/flotec_sump_pump_home_depot.pdfIn PDF document text
- https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_cd16e38713a749698b04421eef58ad64.pdf?index=trueIn PDF document text
- http://sawadosifavaza.rf.gd/5994069320.pdfIn PDF document text
- https://95049c82-e412-4913-a0b0-e03e83d5170a.filesusr.com/ugd/127d6e_cfc4a4ac9f1e4e8f92a223f1c22e9d5b.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_off00010781.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10781 | 5560 bytes |
SHA-256: 7951410d3f21678b845ae584fd9c898612680136fbed5152fa0e5c8e22b17d3e |
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font_01_sfnt_off00011a50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A50 | 12320 bytes |
SHA-256: c6213d601aaf059f3ae8ee42472b3cbabdd2fb3e95dd5e8914e29386c00ef717 |
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