Malicious PDF — malware analysis report

Static analysis result for SHA-256 8292afcdf595bec2…

MALICIOUS

PDF

66.6 KB Created: 2021-02-23 19:17:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cc11d499ecfdc31316ecd0e1f8b2e402 SHA-1: 3ac979808cffae54f56fd95f252257a66bc23673 SHA-256: 8292afcdf595bec2795ae5c6b045d09615241837d92f38d8d6ddf19d5b5af5b1
126 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
  • 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://jacksth.ru/wix?keyword=siemens+hydroranger+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388271/normal_5ffb7ab2d1101.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413583/normal_5ff49a8b89456.pdfIn PDF document text
    • http://reweder.site/my_favorite_things_sheet_music_pianoa9ima.pdfIn PDF document text
    • http://saudiautoinsurance.com/callaway_golf_hat_size_guide49k2e.pdfIn PDF document text
    • https://levevuwakute.weebly.com/uploads/1/3/4/9/134904524/sovazen_gebekulodobiveg_sezavok.pdfIn PDF document text
    • https://bapuporodotuxo.weebly.com/uploads/1/3/1/3/131381531/7939083.pdfIn PDF document text
    • https://tinuvireredat.weebly.com/uploads/1/3/4/8/134864568/tinegawojupesa_mekegope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413845/normal_60235c228bea2.pdfIn PDF document text
    • https://zeraxoxuret.weebly.com/uploads/1/3/4/6/134642117/zirajixafe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413458/normal_60155590435fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490001/normal_601ce2553a3c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444351/normal_5fe5ddc387b34.pdfIn PDF document text
    • http://fbdirect.site/rafunokejofncsbf.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/zamuriza/dungeon_maker_guide_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/kgf_background_music_naa_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/wavupugamuge.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/dexron_vi_atf_data_sheet.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_off0000c84c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC84C 5444 bytes
SHA-256: b3b0e0f3d59f5f3ce2e2aa79a4dfb6458db2e76500cc53769b0a1e874ee815c4
font_01_sfnt_off0000daa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA5 10368 bytes
SHA-256: 71259bee99c9f05ba8aa9ad7d351446ed98f93e5a6af42b47c73badd9abe6e67