Malicious PDF — malware analysis report

Static analysis result for SHA-256 892a4704e8cab910…

MALICIOUS

PDF

72.6 KB Created: 2021-03-01 20:30:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5affa0869a7d82fbc45b0dab9ae0db9f SHA-1: 6f1785c2582b13ef2a652412de997d573757b514 SHA-256: 892a4704e8cab910ffe22638ad4818e97adc7f573abe2ad1e6b9a6a37de4a316
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://soxebez.ru/123?utm_term=kemper+profiler+rack+mount PDF link annotation
    • http://karaulovlife.site/9174803755jdgzv.pdfIn PDF document text
    • http://marafonsport.site/balancing_equations_challenge_worksheet_answer_keym4cv4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369336/normal_5fea07ecb4cab.pdfIn PDF document text
    • http://helplnstagramcontact6088756.com/puritan_bennett_840_manualwdiu9.pdfIn PDF document text
    • http://fixmarker.fun/3278617119f5t1w.pdfIn PDF document text
    • http://malespw.xyz/a_veces_cambias_al_amor_de_tu_vida_por_otro_amor_o_por_otra_vidardt24.pdfIn PDF document text
    • http://scm03.ru/jozarosukagofapobu9f4wm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383128/normal_602603bda0831.pdfIn PDF document text
    • http://smilex.club/70762136090jvqzc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447270/normal_6039ca170a33f.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/pujinit/17054797997.pdfIn PDF document text
    • http://vokutenux.epizy.com/excel_vba_activesheet._range_variable.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/odd_thomas_2013_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/73278030495.pdfIn PDF document text
    • http://rabibunipidozok.epizy.com/codycross_answers_group_212_puzzle_1.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/zupipakufepegusepa.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/gudefasitalaxire.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/factoring_polynomials_practice_test.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_off0000dea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA4 5016 bytes
SHA-256: 16f8666aa02861ec0d24e8a8c66deaaa47a823638a0644ac68791b53ef852aa5
font_01_sfnt_off0000ef9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9E 11320 bytes
SHA-256: 9d2c0a95685bb4b4e16e98ad74e5f96bd787320dd5fe7100816c033809b0f287