Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea83613465c1963a…

MALICIOUS

PDF

66.9 KB Created: 2021-02-25 19:15:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6236482013b3093eb99563ae443d038d SHA-1: b305f4461c0043587ccafad60d164b275253d584 SHA-256: ea83613465c1963af305bfb6b141e6177a2be6cfc9101edb325aff80b4fe20bb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=head%20first%20python%203rd%20edition%20pdf%20free%20download PDF link annotation
    • http://gadetebes.sportsontheweb.net/the_heart_of_betrayal_wiki.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/john_deere_38_snow_thrower_parts.pdfIn PDF document text
    • http://itravelimpressions.com/eylf_professional_learning_program9dydd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418755/normal_5fd82ae52f8e5.pdfIn PDF document text
    • http://okrasote.info/where_is_host_file_windows_78jyiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452398/normal_5fea37c314dd2.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/17874424419.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406473/normal_5fe00ad796c68.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/banuxozovuzaziwutag.pdfIn PDF document text
    • http://findfreegirl.com/tri_fold_brochure_templates_for_photoshopabmv2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://libejejizu.epizy.com/inorganic_fertilizer.pdfIn PDF document text
    • http://gafevudivexer.rf.gd/use_worksheetfunction_vlookup_in_vba.pdfIn PDF document text
    • http://bubokamuwejutul.rf.gd/30317336301.pdfIn PDF document text
    • http://favukimasinete.rf.gd/99814525790.pdfIn PDF document text
    • http://nisinukodepafix.rf.gd/distance_time_graphs_practice_problems_answers.pdfIn PDF document text
    • http://madujenorenugax.epizy.com/petijonuvonoba.pdfIn PDF document text
    • http://bajivuselome.epizy.com/80254172616.pdfIn PDF document text
    • http://mozabufapimil.epizy.com/what_are_social_emotional_skills_for_preschoolers.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_off0000c6b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B0 5448 bytes
SHA-256: af46fb5fd89ddcfa4214038b8be6488a486af791ee92b422f478805a2add28de
font_01_sfnt_off0000d94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94D 10788 bytes
SHA-256: 44614a072b955da606fe691d3fe1ae7ffda790071c22b069151dd7dd079cca23