Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5edde6640ac5e71…

MALICIOUS

PDF

71.8 KB Created: 2021-02-12 22:55:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f25d116a523752033797dfcd20e4e170 SHA-1: fd7b4c48277504d7245c90b2fd53bf440dfbf14f SHA-256: e5edde6640ac5e7195a9652c1ca670caa8519548ab8ad0f36bca204c3a0d488e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=black+butler+season+1+episode+2+facebook PDF link annotation
    • https://cdn.sqhk.co/vexapalas/41JRWYt/farm_heroes_saga_hack_apk_unlimited_moves.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467273/normal_5ff9bb690b44b.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/8jeUhju/kunci_jawaban_troll_face_quest_unlucky_level_36.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/8jfggij/69447600198.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/NhfWfaU/ring_ding_dong_music_video.pdfIn PDF document text
    • http://carbags.site/9799562587oy6rx.pdfIn PDF document text
    • http://meetchat.space/xeluzekajetujifidader6kkf.pdfIn PDF document text
    • https://cdn.sqhk.co/xogatijixe/jeNP0jc/weather_forecast_florida_hurricane_radar.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/nademopor/gotimonekarazan.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/aiou_result_2019_fa_date_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/mukikifa.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/android_fragment_adapter_context.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_off0000de2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2E 5588 bytes
SHA-256: 4f4baea79843969cdfbdee95989b766579f400be644bd63dc35f7037a899235f
font_01_sfnt_off0000f13f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF13F 9808 bytes
SHA-256: 238f78db39ff866b9ca326661409a499d687c9ce53bf6e8ecd6b44a0e5729b58