Malicious PDF — malware analysis report

Static analysis result for SHA-256 845a02d093e58091…

MALICIOUS

PDF

75.7 KB Created: 2021-02-27 16:14:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d47e36351f453718e6b0bf152841318c SHA-1: deb06711b2d77b4c40625efdd52cf6432d5499fd SHA-256: 845a02d093e5809182ee11f49a61484f71a8b41788517f583622211f1075734a
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://jumiwimov.ru/award?keyword=what+are+the+best+drawing+apps+for+apple+pencil PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374953/normal_600c8adb15f4e.pdfIn PDF document text
    • http://beach-fruit.fun/10956077518yc5ye.pdfIn PDF document text
    • https://cdn.sqhk.co/lodikorep/dRgjzic/pioneer_arc_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/tSisagf/38962653669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467571/normal_5fdc075315e18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4859805/normal_60268be5a8527.pdfIn PDF document text
    • https://cdn.sqhk.co/duvapegoleva/idjhjgh/muwani.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/hbgebgg/29220899602.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/ibijPhj/zarevajajorofuluralapuk.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/petugogosidanusurojupeziz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387430/normal_5fef1bbb5dc87.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/jc7IRhi/running_warehouse_clearance_coupon.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/xifabilejilab/belleville_boots_sizing_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/king_platform_bed_bookcase_headboard.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/philips_norelco_bodygroom_series_7000_canada.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_off0000e90f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90F 5664 bytes
SHA-256: be56b955fcd4c51cd576a645bc7ff64f504e28f65f8e55583e0c9b54e00971f4
font_01_sfnt_off0000fc6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6B 10968 bytes
SHA-256: b295de218648059ca3e37b71fb60ea502f89631abaf2ec07c0cd55e9c2202cc2