Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d4303fbfc894d3…

MALICIOUS

PDF

84.2 KB Created: 2021-02-01 21:27:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 81c1ba5804d7225b66e7d4e7674d9e37 SHA-1: 98965bd45f09c29006df05e20b30efe428d882cf SHA-256: 07d4303fbfc894d3f803bc8f53799bf0f0bee11c1b998feaa310fefe960668df
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=adhesive+measuring+tape In PDF document text
    • http://vonowaz.iblogger.org/online_converter_to_docx.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/zufovujamuzonalyuwtp.pdfIn PDF document text
    • http://nicechange.space/rent_agreement_format_in_marathillsui.pdfIn PDF document text
    • http://macsk.space/itel_mobile_dialer_express_apptefym.pdfIn PDF document text
    • http://dithetsen.xyz/62864419778cshup.pdfIn PDF document text
    • http://questotzvezd.space/83997691487yq9p0.pdfIn PDF document text
    • http://igcopyrightforhelps.com/22249878660e0x6y.pdfIn PDF document text
    • http://savadaqwe.space/122676762900n1bv.pdfIn PDF document text
    • http://magnetfix.store/biomagnetismo_medico_dr_goizqw9uq.pdfIn PDF document text
    • http://dasuwupozu.22web.org/linear_equations_point_slope_form_worksheet.pdfIn PDF document text
    • http://fb-ig-violation.com/30377848283ikjgt.pdfIn PDF document text
    • http://pressit.fun/51008905528j52yg.pdfIn PDF document text
    • http://startbastar.online/defolodovuveduzovopivaohm2q.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/zizene/38641142927.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/taponemageb.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/harrison_bergeron_study_questions_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/bejejiwofapelipixomam.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/indira_awas_online_application_form.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_off00010da6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA6 5388 bytes
SHA-256: d853eb358b97abec33de3783178190e3bbd18232490196886522b581c9c9282e
font_01_sfnt_off00011fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD6 10664 bytes
SHA-256: b8ee544fbb7d768a876169843b1e3a05f38d128627c6229aca4488f1d91e7357