Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ed3d881f59e298…

MALICIOUS

PDF

75.0 KB Created: 2021-02-19 14:24:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 17ba40dbdd9643d9d755d789a4ac17b4 SHA-1: 198922359f47fdd7bc7f0b1305273016907ebd66 SHA-256: 75ed3d881f59e298e633b83920e5a6cb9efc71c3a8af9769fa85dd7000db9fc3
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wb?keyword=how%20to%20do%20self%20eyelash%20extensions PDF link annotation
    • http://buvogibe.22web.org/puzzle_games_android_multiplayer.pdfIn PDF document text
    • http://richmaya.site/togaf_9_foundation_study_guidel1hyi.pdfIn PDF document text
    • http://sanasesuj.iblogger.org/all_video_er_free_app.pdfIn PDF document text
    • http://vidapabil.22web.org/dagovejorojeme.pdfIn PDF document text
    • http://carbags.site/glacial_acetic_acid_solubility_in_chloroform060dk.pdfIn PDF document text
    • http://dofukatejipoz.66ghz.com/fejepujinajiwafer.pdfIn PDF document text
    • http://english-10.site/xusedezi9g67x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xinudigiwuwa.epizy.com/chronic_pain_management_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/saliwapuzibegixe.pdfIn PDF document text
    • http://vipebajivakal.epizy.com/63399386926.pdfIn PDF document text
    • http://nazonuretowu.epizy.com/squarespace_templates_for_bloggers.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/arroyabe_reformas_y_proyectos.pdfIn PDF document text
    • http://furugavasipif.epizy.com/gefajuxetoton.pdfIn PDF document text
    • http://beninoduvewer.epizy.com/division_worksheets_for_3rd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/wibedoxebivusuwojelu.pdfIn PDF document text
    • http://xovipofeguz.epizy.com/38474031477.pdfIn PDF document text
    • http://gegepemu.rf.gd/bitcoin_core_slow.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/91353469552.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_off0000e8c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C7 5120 bytes
SHA-256: 83e5296666c7e15908d12ac2d9eb6cc79f2617b2a5e4b8513c57c9dff1081ef1
font_01_sfnt_off0000fa4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4B 10720 bytes
SHA-256: d29b01aaa62e55f58c5fc273ef6a07334e03788afcb53919da2635ecdc2853e9