Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2279ee731aeb443…

MALICIOUS

PDF

71.0 KB Created: 2021-02-07 09:59:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 358d89a08c11f8726a92c5beade22276 SHA-1: 5547a944bb32148e2fc49d068763407bfc9ce03e SHA-256: f2279ee731aeb4431df7611712e5099075d3a526bf53605837998d782014eae2
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://seumenha.ru/123?utm_term=charter+on+demand+code+408 PDF link annotation
    • http://top-salez.site/93461717332sig08.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/nerugiraxura/editable_certificate_of_achievement_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/chammak_challo_telugu_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/history_oral_presentation_outline_format.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/medical_certificate_form_for_leave.pdfIn PDF document text
    • http://kebanibaru.epizy.com/sticker_printer_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/please_answer_the_following_questions_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/24168510418.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/old_man_river_sheet_music_free.pdfIn PDF document text
    • http://luselobek.epizy.com/5811353619.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/pf_withdrawal_form_10c_19_c.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/candy_crush_soda_mod_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/ablebits_data_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/ease_of_doing_business_2019_report.pdfIn PDF document text
    • http://tovajukoxeboder.epizy.com/boq_full_form_in_electrical.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_off0000d797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD797 5300 bytes
SHA-256: bd0b30cadb33c7f219608ea07f1d974d6e230bdd142c4d29966c6cf592f487a8
font_01_sfnt_off0000e96d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96D 11136 bytes
SHA-256: e8681793e976bb5357879e383b78e07c6f045591fe4841501478c35d73bacf7a