Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d935a54f198568b…

MALICIOUS

PDF

76.1 KB Created: 2021-02-28 18:58:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7ea44667a09e88757a5565d3073ca362 SHA-1: 74e8aca86658a41a10c83fe95cffb1d792beba45 SHA-256: 1d935a54f198568bc7953149317fe4645c7ba2f67e2a296768fa680b8300dd74
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://botokaw.ru/123?utm_term=anker+soundcore+reviews PDF link annotation
    • http://arendagg.xyz/android_save_base64_image_to_filexj4mn.pdfIn PDF document text
    • https://tipozuroboga.weebly.com/uploads/1/3/4/2/134265922/vevorazesop_fanotidebu_degawigujivoke.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/56492225263.pdfIn PDF document text
    • https://xuredetinumimo.weebly.com/uploads/1/3/4/6/134630251/nodigutaromaz.pdfIn PDF document text
    • http://spain50off.info/free_checkers_games_online_against_computerngsr1.pdfIn PDF document text
    • http://gowanenutik.mypressonline.com/55178654068.pdfIn PDF document text
    • https://xonatusapu.weebly.com/uploads/1/3/5/3/135391421/kudajorinogegab.pdfIn PDF document text
    • https://nozezekotelipub.weebly.com/uploads/1/3/4/8/134883262/7044598.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/XW95APp/lykoi_werewolf_cat_price.pdfIn PDF document text
    • http://wowitaly.pro/beatles_flute_sheet_music_freex7zob.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/nilafafakem/loguxiwijenobumokisukabo.pdfIn PDF document text
    • http://bonezulaw.rf.gd/tamil_movies_sites_hd.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/bivojuzewusenabiputomix.pdfIn PDF document text
    • http://retelowanudugut.epizy.com/bijagugideget.pdfIn PDF document text
    • http://pavawabu.rf.gd/unmasking_the_face.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/nularopalemute.pdfIn PDF document text
    • http://tixofimisupabev.onlinewebshop.net/wokugoradun.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/dual_axis_chart_google_sheets.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_off0000ef10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF10 4896 bytes
SHA-256: 91a5701ef18de8df6ec8a4a3d1b275f8c1dbc9c9a767cb57d23e1bbfb18374e3
font_01_sfnt_off0000ffe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE4 10444 bytes
SHA-256: a8cab0fb1ee022eb749339de83189b163d60f9ce198b8e94c53eef059814d9b8