Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58e4f2d601db63f…

MALICIOUS

PDF

70.9 KB Created: 2021-02-18 15:26:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d69d609f7c81aa42c4c2f0aef024c483 SHA-1: 536de2a27a72900c044473419587d341fe39e8a1 SHA-256: d58e4f2d601db63f4e32e29793234cef9545c084de1e9144e33f622ebfbbf86b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://maypoin.ru/wix?keyword=wtfock+season+4 PDF link annotation
    • http://fallofelin.online/48563360645pt6ir.pdfIn PDF document text
    • http://obzorov.site/280491338302x3iv.pdfIn PDF document text
    • http://chunyoo.com/chosen_song_whatsapp_status05lg7.pdfIn PDF document text
    • http://smm-target.ru/lord_of_the_rings_completeicpeo.pdfIn PDF document text
    • http://vasamekekegu.iblogger.org/internal_wall_cladding_sheets.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/miwizec49te.pdfIn PDF document text
    • http://grinallex.shop/valores_y_antivaloresfzj77.pdfIn PDF document text
    • http://mini-camera-super.club/853889944706qti2.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/fomaralunex/water_brochure_design_vector_free.pdfIn PDF document text
    • http://bosirizowu.rf.gd/charity_event_marketing_plan_template.pdfIn PDF document text
    • http://wizebefekeb.epizy.com/2966210913.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/miluxososogolosa.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/information_about_interior_design_services.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/pagewriter_tc70_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/75998494501.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_off0000da50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA50 4912 bytes
SHA-256: 2499bd41de946b19fd080c6ddf46c296b5236a5ff736136396580e1f7877fe4c
font_01_sfnt_off0000eb40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB40 10516 bytes
SHA-256: 1b7bc3cc46cc723905aba51a02c2d3a9e3074eb762d02bb0c36b9e3710fae7f4