Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d9a135aef7acc21…

MALICIOUS

PDF

79.1 KB Created: 2021-03-01 19:00:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6ac245cd1d2b9069aa5c212b11c96911 SHA-1: 0d8e8928fdb23f73c2308e4b9becb4395db37008 SHA-256: 1d9a135aef7acc2168c1c1ee6820c69e471288e199aadf8189a2398edcea646c
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://lozipotod.ru/aws?utm_term=lord+of+the+rings+amazon+series+casting+director PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461516/normal_600b4ad7ea305.pdfIn PDF document text
    • https://cdn.sqhk.co/jutafegobexe/JgizsBa/ghost_rider_live_wallpaper_gif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409602/normal_600aac9b840a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450034/normal_6003ee1f4dc27.pdfIn PDF document text
    • https://cdn.sqhk.co/mevazasid/ePYZLih/82378423784.pdfIn PDF document text
    • https://cdn.sqhk.co/fabozesemi/jiWjbDH/52690711298.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366406/normal_5fcaabaadd891.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/ibgcXha/48188267794.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/4M9hjhf/nebi_film_photo.pdfIn PDF document text
    • https://cdn.sqhk.co/rifojimuna/tjjhbje/pc_games_free_july_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/gIdHRH5/safely_remove_external_hard_drive_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/rewazexi/pjeihjh/mitusafemuremoga.pdfIn PDF document text
    • https://cdn.sqhk.co/zarifabidit/iahiPje/30684178438.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480403/normal_5fdc6fa923645.pdfIn PDF document text
    • https://cdn.sqhk.co/nokodexuxof/3pjfZ5Z/best_professional_audio_recording_software_for_mac.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/jusuberu/new_auditor_s_report_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/guide_exploration_drustvar.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/emekli_sand_askerlik_borlanmas_formu.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_off0000f633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF633 5396 bytes
SHA-256: 25739b9949c7b28a4070d2577fadb0bf2850461185960d456ae4374a61648634
font_01_sfnt_off00010872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10872 12264 bytes
SHA-256: 48624dfc91f18080bfd14b8f24788828f761a911f9208a0746deca5fd803cf9c