Malicious PDF — malware analysis report

Static analysis result for SHA-256 b949ea92df3a56a8…

MALICIOUS

PDF

72.0 KB Created: 2021-01-19 06:59:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 61423182f66aef4bd8a5c5ebb49850de SHA-1: 175367536d3759b9f57186b671b86bca411410bd SHA-256: b949ea92df3a56a8a1ff0e5d7683b819bef4494fb740c6694f1ea3475fa6e4ef
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/123?utm_term=big+fish+quotes+movie PDF link annotation
    • https://site-1168264.mozfiles.com/files/1168264/best_tv_series_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/vumulevezuf/XRhhkha/download_messenger_for_whatsapp_web_app.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/police_report_writing_tips.pdfIn PDF document text
    • https://site-1259469.mozfiles.com/files/1259469/loxobabozu.pdfIn PDF document text
    • https://cdn.sqhk.co/wogefosa/ECjahaC/bikajikunativuribekudog.pdfIn PDF document text
    • https://site-1175797.mozfiles.com/files/1175797/lubipa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://debukigezi.epizy.com/pasakepubaxaz.pdfIn PDF document text
    • http://vakewexapenox.epizy.com/gupipanaz.pdfIn PDF document text
    • http://gedamodeges.epizy.com/pivisevapetunuludi.pdfIn PDF document text
    • http://mebexadesojixip.rf.gd/powerpoint_animation_presentation_free.pdfIn PDF document text
    • http://dezoruxeg.epizy.com/arere_avala_naguvu_karaoke.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/22948044435.pdfIn PDF document text
    • http://rebobimakefeli.epizy.com/tivivawulowage.pdfIn PDF document text
    • http://fotopokidag.epizy.com/auto_submit_form_on_file_select.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/current_affairs_2019_in_english_with_answers_download.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_off0000dd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD17 5076 bytes
SHA-256: 8ed5509b086f6323a954cb9cead3226a3d7c43c0c6b423cc731034a01c8358c1
font_01_sfnt_off0000ee55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE55 10904 bytes
SHA-256: c2cac1edb4ed625bddde0eec33b4de44775ef7520993e9148e7e07ca1725146c