Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcae17ebeaa0eab9…

MALICIOUS

PDF

65.0 KB Created: 2021-02-12 12:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6c29b0e8030f9089a4f4918dc91bfa88 SHA-1: df3a2a4fe48b93060b44ceb4b6d8c5431ada5f79 SHA-256: dcae17ebeaa0eab93dcb66685fcf4024af45eb1016c31030a1a9db3a1444a36f
126 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
  • 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://druttle.ru/wix?keyword=gramatica+a+comparatives+answers+page+128 PDF link annotation
    • https://cdn.sqhk.co/difigobon/iF7ijic/58449443381.pdfIn PDF document text
    • http://allwoman.site/jifosisutaxetonlyx.pdfIn PDF document text
    • http://verifybadgehelp.com/9605637868pjcwt.pdfIn PDF document text
    • http://firstdoctor.xyz/worry_free_money_shannon_lee_simmonsqr2yq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375083/normal_5fe7f72638a01.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/hOiaBii/30572415086.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492875/normal_5ff1c540969e9.pdfIn PDF document text
    • https://mefufexuwi.weebly.com/uploads/1/3/4/0/134019004/dikikikijoti.pdfIn PDF document text
    • http://smartbright.club/fallout_4_male_hair_mods4pe4z.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/oZuegdx/3259787589.pdfIn PDF document text
    • https://zikovawezuve.weebly.com/uploads/1/3/1/1/131164456/64c0e13a43b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455375/normal_5fca71c713ec7.pdfIn PDF document text
    • http://quickpapp.online/fique_rico_ou_morra_tentando_filme_completo_dublado_mega_filmes5ryit.pdfIn PDF document text
    • https://cdn.sqhk.co/fadejiweruw/9ifvjgc/87576761766.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/niporofez/im_a_celeb_game_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/34198438074.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/criterios_asfixia_perinatal.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/best_modded_android_games_apk.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_off0000bee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE4 5784 bytes
SHA-256: c530af26a3f106d91b2e34e3766c0417144e32b770b6f24992c6f2c9126803ec
font_01_sfnt_off0000d2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A4 10112 bytes
SHA-256: a9bdfa95466d99dd5c44aecca17204db41d32700234687cb816ea60b40bfb963