Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0172d4eab967dbb…

MALICIOUS

PDF

67.8 KB Created: 2021-03-17 18:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 488b92580f1881f1679362f7ae403ba5 SHA-1: 8f47f6c38e5a299cd66ea09ecd3448ad33acb3d2 SHA-256: f0172d4eab967dbb6af02240876d753ac2b558421a8c0a972a75349762bb4f6c
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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://vilenefex.ru/award?keyword=turtle+art+tutorial+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4414334/normal_6007b311dec03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449603/normal_602b2d885b203.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447662/normal_6007dec998050.pdfIn PDF document text
    • http://nebuxopav.mypressonline.com/alginato_odontologico.pdfIn PDF document text
    • http://votixowet.22web.org/rejoxufojuluga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454286/normal_600e51dfea5ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393790/normal_5fe426d4dcf2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392220/normal_6012dc1705bc6.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/makalah_metabolisme_lipid_biokimia.pdfIn PDF document text
    • http://fofipaminek.iblogger.org/72940104044.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426416/normal_602818a8218ce.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/6bdfd02e-c75e-48d9-851f-4e3bd11a57ae/98630903765.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/fukifavivomuwese.pdfIn PDF document text
    • http://zaduzos.myartsonline.com/39974774446.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/32894673102.pdfIn PDF document text
    • http://pizoxuwa.epizy.com/51253607365.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/56939936776.pdfIn PDF document text
    • http://faxogego.epizy.com/bollywood_hd_video_songs_sites.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56ee3fcd-78ad-4dc9-885b-78c7a0133323/descargar_traductor_ingles_espaol_espaol_ingles_gratis_para_pc.pdfIn PDF document text
    • http://fudewalazakukug.epizy.com/11418617246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc41779a-7e4d-4b80-a1b5-d9accca9a5c8/30688605334.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/social_work_ethical_principles.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_off0000cf71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF71 4808 bytes
SHA-256: 786a927bcf744d8378c2649e22df0fb3e22c8209add5abaf43d7039844828995
font_01_sfnt_off0000dfd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD9 10120 bytes
SHA-256: 3e35345201dae4bd9738aed8fbf68339304d1aa82fad1591688ca1ac0975fee9