Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07c06b1c93bc1b7…

MALICIOUS

PDF

72.0 KB Created: 2021-02-26 03:20:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: be4200c50cf5626548659c427f0459c7 SHA-1: 527c847c0d89bc12eda8d2e1a90441729548142c SHA-256: d07c06b1c93bc1b7165e862d19d48935564365a1a38ededa2d07499ec39f6c9c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://jifurutirijiguj.weebly.com/uploads/1/3/4/5/134528482/9048390.pdf.
  • 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://jottigo.ru/wix?keyword=the+girl+in+the+green+sweater+read+online PDF link annotation
    • https://cdn.sqhk.co/ratufewebu/e96QUxS/guess_the_tv_show_pic_pop_quiz_answers.pdfIn PDF document text
    • http://kanshoper.site/963556251589owjf.pdfIn PDF document text
    • http://basiditdcf.space/xafokulirufqzpz3.pdfIn PDF document text
    • http://copyright-services-us.com/dawiriwafidosoxataayx9q.pdfIn PDF document text
    • https://jifurutirijiguj.weebly.com/uploads/1/3/4/5/134528482/9048390.pdfIn PDF document text
    • https://wifusudufasebo.weebly.com/uploads/1/3/5/9/135992472/6ac4cb1.pdfIn PDF document text
    • http://allerop.xyz/afghanistan_weather_reportkgfwo.pdfIn PDF document text
    • https://bisowepot.weebly.com/uploads/1/3/4/5/134598436/jesak-jivoluxiwomed-musubuvod-dowid.pdfIn PDF document text
    • https://siwevamad.weebly.com/uploads/1/3/1/8/131871433/zitegupubuse.pdfIn PDF document text
    • http://new-volosi.ru/cedula_de_identificacion_fiscal_persona_fisicae28ws.pdfIn PDF document text
    • http://senteber.site/5e_xanathar27s_guide_feats93j06.pdfIn PDF document text
    • https://cdn.sqhk.co/gerukoso/fcEhdgd/67718403725.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/o_mio_babbino_caro_lower_keyt1ccw.pdfIn PDF document text
    • http://byseles.xyz/gotoassist_service_desk_api_guidenq5bv.pdfIn PDF document text
    • https://cdn.sqhk.co/luzigagoguna/ig3MicU/bombay_cat_personality.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/dofufiri/cb_background_full_hd_1080p.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/mobile_app_development_course_for_beginners_singapore.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/fimebosawotowugesuxufiwog.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_off0000de13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE13 5128 bytes
SHA-256: 067aca226440356eadddd16ef27f80e00479a202bb1095e935815c18282a4c26
font_01_sfnt_off0000ef8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8E 10240 bytes
SHA-256: 5456a2cf6cd72ce02677f16748ff4e542163074cecfc0ab29f889284b7e7752a

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