Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8042d6250bd8402…

MALICIOUS

PDF

63.6 KB Created: 2021-02-01 04:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e09223ed339570b05f2e1722ae23491a SHA-1: 9cc45349b235f4e3b62f3fd94a9c51c754ca5a62 SHA-256: e8042d6250bd840233c29a695c688be5c9e1f0640ac1cb079323f0af3e15cc1f
134 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 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://seumenha.ru/123?utm_term=govt+home+phone+number PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427509/normal_5fda75542e80c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459929/normal_5fceb930184a3.pdfIn PDF document text
    • https://cdn.sqhk.co/fopujetoros/WXoiQ67/93346372640.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461498/normal_5ff22fea79260.pdfIn PDF document text
    • http://vaxuzorokolate.iblogger.org/backstage_passes_and_backstabbing_bastards.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://beverotunege.epizy.com/syntropic_agroforestry.pdfIn PDF document text
    • http://bizotuku.epizy.com/lodebadet.pdfIn PDF document text
    • http://zukisofom.epizy.com/riserumisob.pdfIn PDF document text
    • http://dinixebun.epizy.com/96530187610.pdfIn PDF document text
    • http://fofuxolisemaxim.epizy.com/staples_labels_5160_template.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/damilan.pdfIn PDF document text
    • http://venakato.epizy.com/earthing_bed_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/expanding_and_simplifying_brackets_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/amount_of_substance_questions_and_answers_aqa.pdfIn PDF document text
    • http://fufibilola.epizy.com/28977977933.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_off0000c10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC10B 4872 bytes
SHA-256: 3484cbd60660cc150d98aa138ffdf7bdbb3fef5da0e8a26c6bd448cc7ca0c431
font_01_sfnt_off0000d174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD174 9492 bytes
SHA-256: 1aad5fb25170e058adce1e020db965449a249ec66fd42517715ccd3b4b8a6935