Malicious PDF — malware analysis report

Static analysis result for SHA-256 205915cdb4e996ab…

MALICIOUS

PDF

76.9 KB Created: 2021-02-21 06:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 24eb81dd34be7dfd4996dd785bb9ea54 SHA-1: 661957d3ded877bdc3c8fbd01c10265f08b9f06c SHA-256: 205915cdb4e996abbef34cd1f702a3a0a39722f824be12205d248ba5ea772e6f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=rv%20toilet%20seal%20fix In PDF document text
    • http://winoraama.website/sevodilulotevudoama.pdfIn PDF document text
    • http://jemofukamuwol.22web.org/lalobatu.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/14532432206.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/9695201069.pdfIn PDF document text
    • http://believes.space/word_of_the_day_list_for_elementary_studentsq8y6n.pdfIn PDF document text
    • http://fewomazojuxed.iblogger.org/bumble_dating_app_latest_version.pdfIn PDF document text
    • http://shop-profildoors.ru/video_player_download_for_windows_vistamunw3.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/new_marathi_movies_utorrent.pdfIn PDF document text
    • http://kupivse.xyz/manual_usuario_contasol_2019eu9e5.pdfIn PDF document text
    • http://stav-games.ru/hl-2270dw_brother_printer_driverzb69a.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/pac_man_game_java.pdfIn PDF document text
    • http://filanion.online/muxisgelsj.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000f359.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000f359.bin)
    • http://numivonef.rf.gd/tinixekowisepuzenizuton.pdfIn PDF document text
    • http://dovudegumigisaw.rf.gd/asco_guidelines_breast_cancer_chemotherapy.pdfIn PDF document text
    • http://nototen.epizy.com/avenue_supermarts_ipo_performance.pdfIn PDF document text
    • http://tononuzaribiw.rf.gd/marvel_puzzle_quest_game.pdfIn PDF document text
    • http://tizivedimusos.epizy.com/autocad_2014_keygen_free.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 extracted file (font_00_sfnt_off0000f359.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF359 4800 bytes
SHA-256: 4ee43877cbd3b462e784c7c29256d213937820d943ba1c0c4020bf0fbbf73224
font_01_sfnt_off000103d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D2 10256 bytes
SHA-256: b547513613cef87e7fac64869d5395f06e1dbd121ff7a80fe1535de60a783203