Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd9f6e18fb2d68fc…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 02:22:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1b9f02c87f2379c597a833d51c49db60 SHA-1: b1b73081f7b2bc11f92a8ae3872a8dd18c870012 SHA-256: bd9f6e18fb2d68fcc37b169bf52a4b5e853259f2619b94802d7409c84b1c05f7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wix?keyword=yamaha+helm+master+owner%2527s+manual PDF link annotation
    • https://cdn.sqhk.co/kososojog/AGihGjd/shelter_cove_marina_san_diego.pdfIn PDF document text
    • https://cdn.sqhk.co/keridola/fEZoRlC/bejelubipexovededomibu.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/bWSJlIL/top_instagram_hashtags_tags_for_likes.pdfIn PDF document text
    • https://cdn.sqhk.co/resesexiraf/gfyjekt/crash_web_series_mx_player_imdb.pdfIn PDF document text
    • http://jusefaw.22web.org/36967363931.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/h4hbija/zosizamawulob.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/GhaPcgc/waduwukifa.pdfIn PDF document text
    • https://pizotiwedif.weebly.com/uploads/1/3/4/8/134868845/bad853a69a.pdfIn PDF document text
    • https://luzulobopado.weebly.com/uploads/1/3/2/6/132681737/nafiw.pdfIn PDF document text
    • https://cdn.sqhk.co/sunidoxil/akgghVi/toy_game_basketball_hoop.pdfIn PDF document text
    • https://cdn.sqhk.co/tufiroxova/hdjfibf/34012458489.pdfIn PDF document text
    • https://bipinudaw.weebly.com/uploads/1/3/4/7/134718108/revosutenerumajok.pdfIn PDF document text
    • https://vutakajar.weebly.com/uploads/1/3/4/8/134896426/1770093.pdfIn PDF document text
    • https://cdn.sqhk.co/lajojeletab/gd1gfib/adobe_illustrator_fill_color_artboard.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/mafavuzenoliki/hutchison_telecom_annual_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/97037971970.pdfIn PDF document text
    • http://dijimati.rf.gd/dd_dungeon_master_ai.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/blank_timeline_template_word.pdfIn PDF document text
    • http://voxinuxo.epizy.com/full_bass_dj_song.pdfIn PDF document text
    • http://zedoliwitimevaf.epizy.com/13830154521.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_off0000d5be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BE 5012 bytes
SHA-256: 1539bcca231c3354bd2751d6a09c72c538ed47a418e0f876e5220eb781e4f6e3
font_01_sfnt_off0000e6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B6 10500 bytes
SHA-256: babedbb3550377d7b609a2b4575d18de61090b29ae0c6fcd8cf298290613b665

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