Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3534c0760093d6…

MALICIOUS

PDF

72.2 KB Created: 2021-02-14 11:46:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 929abf4a2531b2c125bc19a17112b988 SHA-1: 79a9611756506a85b85e4981d06fedcbd537034a SHA-256: eb3534c0760093d634c8f616458fd8bdab0fb864935252bf2abccf6d27f53a47
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://jacksth.ru/123?utm_term=how+to+solve+it+polya+pdf+espa%25C3%25B1ol PDF link annotation
    • http://wufutawolemipa.22web.org/go_message_pro_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470027/normal_601d51cb06a03.pdfIn PDF document text
    • https://fabisinutufonos.weebly.com/uploads/1/3/5/9/135993578/gepeje_jikok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413469/normal_6026dc097d7a0.pdfIn PDF document text
    • https://posokirotol.weebly.com/uploads/1/3/2/8/132814476/8508309.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422163/normal_5ff1f8a38132a.pdfIn PDF document text
    • http://terem.space/worship_music_chordszeto3.pdfIn PDF document text
    • http://3203epworthcres.com/madcon_beggin_320_kbps3lutf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467318/normal_5ffac0de6973d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459792/normal_5fed99873a2ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pavipalu.epizy.com/lunekabezejoxuz.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/27854948969.pdfIn PDF document text
    • http://boxemoje.epizy.com/3715158170.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/sql_format_function_in_sql_server_2008.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/arbitration_guidelines_india.pdfIn PDF document text
    • http://ketanuviz.epizy.com/jedekoriguz.pdfIn PDF document text
    • http://telijurubora.rf.gd/56925970529.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/w-_4_personal_allowances_worksheet_2018.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_off0000d9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A5 5368 bytes
SHA-256: c19f8d96530ba1d66c83bbafe6ca6224d55ed637f8339eb6d79c6d43d9dd2b73
font_01_sfnt_off0000ebd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD7 11428 bytes
SHA-256: 3c813e506819b618c8b7c9ca5399776a474463ac41c09b4d5a1dfa7f0dfda447