Malicious PDF — malware analysis report

Static analysis result for SHA-256 73d6321ecea077f1…

MALICIOUS

PDF

72.2 KB Created: 2021-02-26 04:11:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6f9467f09b151393342f9166631f42e6 SHA-1: 8671e5cd438ba8a731a1429135e1b89ff19c9653 SHA-256: 73d6321ecea077f1cde4d1c29e1f92d498f7ec88d5b466a7ec6999a2770c5d83
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • 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://maypoin.ru/award?keyword=how+to+connect+behringer+xenyx+x1204+to+computer PDF link annotation
    • https://vikakexotokipo.weebly.com/uploads/1/3/0/9/130969200/7086986.pdfIn PDF document text
    • http://pegixudovojap.iblogger.org/lepego.pdfIn PDF document text
    • http://mynasert.online/7765876678udlhq.pdfIn PDF document text
    • https://matasomorat.weebly.com/uploads/1/3/4/4/134492922/ee7cb3144a4b04.pdfIn PDF document text
    • http://pudumalezedokav.22web.org/prezi_sample_templates.pdfIn PDF document text
    • https://cdn.sqhk.co/wexufenu/o42ijjf/44303947090.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/wopari/synonyms_worksheets_for_5th_grade.pdfIn PDF document text
    • http://zumewozuzetarun.epizy.com/lilisusagujagomo.pdfIn PDF document text
    • https://s3.amazonaws.com/gonasidupij/tunebutovininelidoxazi.pdfIn PDF document text
    • http://juxitogepamuwo.epizy.com/10974709990.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_off0000dcce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCE 5704 bytes
SHA-256: 2415b9eb67457e40cb8feaf44e5b27e303cc67effed571ebc83ffa4a441d4046
font_01_sfnt_off0000f03e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03E 10308 bytes
SHA-256: 4ffd58db6ce0587f5dd9067dde19f1c16fd29cc6c3c59951407ebc7b3114603b

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