Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d11e0d971220c8…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 16:55:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 92aa2b43c10c27ca193e788043b9c2d1 SHA-1: b3eb035bbd254dd6de6005cc05f3cf8fddc83530 SHA-256: 10d11e0d971220c8eba0afefba60e52a3582599d53f4ba428d6009438a629028
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=torment+lauren+kate+pdf PDF link annotation
    • https://vugesajovor.weebly.com/uploads/1/3/4/2/134265649/6303494.pdfIn PDF document text
    • https://jagunafine.weebly.com/uploads/1/3/4/3/134363358/4721935.pdfIn PDF document text
    • https://sudororurupe.weebly.com/uploads/1/3/4/6/134602833/1168005.pdfIn PDF document text
    • http://olymp-trade.top/50_top_questions_and_answers_interviewlddjb.pdfIn PDF document text
    • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/puzemexipo.pdfIn PDF document text
    • https://lepeposozul.weebly.com/uploads/1/3/5/3/135317560/1388649.pdfIn PDF document text
    • https://vugawijop.weebly.com/uploads/1/3/4/5/134594760/62d3c6.pdfIn PDF document text
    • https://sonefexezeripu.weebly.com/uploads/1/3/0/7/130739000/kanafebixesi_podosija.pdfIn PDF document text
    • http://dsv-trening.ru/mitchell_auto_repair_manual_onlinerr06m.pdfIn PDF document text
    • https://zikegebuner.weebly.com/uploads/1/3/4/8/134856814/foxalunezevaxu.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/numunenoji/bd_police_clearance_form.pdfIn PDF document text
    • http://tetigod.rf.gd/32479120892.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/stock_ageing_report_in_abap.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/illuminated_manuscript_for_sale_uk.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_off0000d7a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A1 5024 bytes
SHA-256: a961947b6b2e0b47f678637cdfbb11245f0620181a700f065a2ca0871b33a966
font_01_sfnt_off0000e8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A1 10020 bytes
SHA-256: 89b0e4dc0c4c1bf47f6c4487910bf1c9f09a98a46474e1e8c1defc36637072fc