Malicious PDF — malware analysis report

Static analysis result for SHA-256 60921de868595f1a…

MALICIOUS

PDF

70.1 KB Created: 2021-02-21 15:58:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 04d046780d1f6aa052bcbf9ed8800ccb SHA-1: 52c2c67ae02a2317eefa201474131cc5beda658a SHA-256: 60921de868595f1a9c9b257cfb640b86168ddc38096aee1018dd8f4ae466b1ad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wix?keyword=finnegans+wake+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407314/normal_602ba24f786c9.pdfIn PDF document text
    • http://help-nanny.site/tablet_messenger_for_whatsappmoauk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5fdc1f48767e5.pdfIn PDF document text
    • http://agnewjacobs.com/37375941188d5sb7.pdfIn PDF document text
    • http://harmony-market.ru/elevated_planter_box_plans_frees7cf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409818/normal_6009ef1937972.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489407/normal_5ffb5de560b79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368242/normal_5fde24744a663.pdfIn PDF document text
    • http://umniashka.ru/11964405491n7fb9.pdfIn PDF document text
    • https://rimemukevip.weebly.com/uploads/1/3/4/3/134318995/3843123.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494440/normal_5fdf095fa7412.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452837/normal_601db7a2daeb3.pdfIn PDF document text
    • http://ludshop.xyz/solving_and_graphing_compound_inequalities_worksheet_answersclqe5.pdfIn PDF document text
    • https://zexejofamimow.weebly.com/uploads/1/3/1/4/131438337/502d6776cb0d573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374199/normal_601a8178dcce5.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/twist_of_fate_full_movie0e9ub.pdfIn PDF document text
    • http://swiss-gear.store/ubuntu_bootable_dvd_isojns0i.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/remuv/arangetra_velai_movie_songs_starmusiq.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_off0000d613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD613 5320 bytes
SHA-256: 7f8cc853b3f8863e7f24557cbb4f94ea271360e0a9407d283e20d9fdce809a87
font_01_sfnt_off0000e859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE859 10184 bytes
SHA-256: 9d10101add753d4586960bf717f689980660c91f64b23420a721879894ce88a1

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