Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8cd1e1168b06f8b…

MALICIOUS

PDF

76.6 KB Created: 2021-02-25 10:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5779d58036de3e0495146082b07bbef3 SHA-1: e68bfa2fe5841d40fc29a388cd91803e3995d839 SHA-256: d8cd1e1168b06f8b2187ea47039f341f9a61a5d20cee62b584c4ed9f8a27c29f
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://jacksth.ru/award?keyword=is+outlander+free+on+netflix PDF link annotation
    • https://cdn.sqhk.co/lizubenesowi/ajdbgdb/ear_level_sound_generators_for_tinnitus.pdfIn PDF document text
    • http://manybigs.space/download_call_of_duty_mobile_apk_mod1nnv8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367922/normal_5fef1456d98a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_60233a8eed172.pdfIn PDF document text
    • https://cdn.sqhk.co/tefazaturar/jaEjdxc/carnatic_musician_sowmya_husband.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527902/normal_5feffbdc3d04b.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/z4Phavp/super_penguin_run_mod_apk_all_levels_unlocked.pdfIn PDF document text
    • https://cdn.sqhk.co/fitodofafe/hRczhdt/pico_rivera_california_villages.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/N7F9giC/32007977684.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/saxefi/fujifimowadawixadatuvipab.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/formel_fr_bremsweg_anhalteweg_reaktionsweg_gefahrenbremsung.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/nunabaxije.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/catharsis_in_literature.pdfIn PDF document text
    • http://pebejokepekizuz.rf.gd/70024328801.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/bombay_to_goa_2007_full_movie.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_off0000f0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EA 4904 bytes
SHA-256: d83d8c45191fed3ce6f499c6cc29597b919b0b67a9cc999fbebc3ba4a1c9923f
font_01_sfnt_off000101a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A4 10500 bytes
SHA-256: b2e186dad990067780ef51dc07573f51450a52bca62c268b3c300a2023138263