Malicious PDF — malware analysis report

Static analysis result for SHA-256 191ee07147d4ef6c…

MALICIOUS

PDF

71.2 KB Created: 2021-04-05 13:34:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 355248ef93c5ea04778c739a1f1e2c1c SHA-1: 4b1a53da4d37b4fe7447ba838741dd69f1b25a48 SHA-256: 191ee07147d4ef6ca3ecf223fbe0701aa24fcf6e17ac957769979e6675af2f2f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://leonvi.ru/123?utm_term=rudram+ghanam+pdf PDF link annotation
    • https://cdn.sqhk.co/verexoleki/iaiihhw/32379863872.pdfIn PDF document text
    • https://cdn.sqhk.co/fonazovep/jhBhgcm/social_media_marketing_courses_with_certificates.pdfIn PDF document text
    • http://nojavit.22web.org/28127098923.pdfIn PDF document text
    • https://cdn.sqhk.co/rujuwawuju/Mie6Qjb/formation_chaud_froid_paris.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/wulogazelxsnih.pdfIn PDF document text
    • http://rankingcoach-seo.com/futiromitasufemavudamu9fb3.pdfIn PDF document text
    • https://cdn.sqhk.co/zodavujera/cjhjfij/80039409581.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/cb85b15d-6960-4334-9045-968b7ec20eab/business_mathematics_course_outline.pdfIn PDF document text
    • https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_8c131ec2f4a4446692472354d9d66676.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mulerux/texesutikorubajawagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80edee4f-dd8d-4457-9986-c1d20156dcaa/kenwood_dnx692_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d566c0c-f649-4c2e-b669-7180ebb5bffc/mindfulness_colouring_book_for_adults.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d755613-a2f9-4186-8722-aca08c6bab4e/fulltone_ocd_v2_review.pdfIn PDF document text
    • https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_afe91ccfbb5741d09e6241caf35b79eb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/8863901225.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f222601-d294-40af-98e8-39a3dcb2065b/zebedaxivixokimigexab.pdfIn PDF document text
    • https://34ec465e-51aa-4dba-9a8c-c05fcfb5ae84.filesusr.com/ugd/df15ee_e84a74c7af84425fb52d2dd5c5fb0f97.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/what_is_lean_supply_chain_strategy.pdfIn PDF document text
    • https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_6033a988886341c49c9bacb198d31882.pdf?index=trueIn PDF document text
    • https://99b08629-27b2-41dd-83a1-938dc2ca35bd.filesusr.com/ugd/067ecb_8bd887f759654cd4a19ee2940074a7ec.pdf?index=trueIn PDF document text
    • http://fejobizife.epizy.com/bsc_biotechnology_syllabus_2020.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.

FilenameKindSourceSize
font_00_sfnt_off0000d76e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76E 5252 bytes
SHA-256: cbcd8def98b1cc323c0f25d8070c88b3688986cb53e1d95249833b1537470957
font_01_sfnt_off0000e92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE92C 11092 bytes
SHA-256: 5643400e0efeba69f026eeaa93769841b68e21d0fb61ff48b054ccf763aa5793

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