Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2ffde82a344733…

MALICIOUS

PDF

72.1 KB Created: 2021-02-17 11:07:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dd9b9116d9dab6737c852ce80b467316 SHA-1: b243f6d942bac7a6d720562cc686772e925703fd SHA-256: 1d2ffde82a3447336896a18a92805f8301c8b6fbe2953dde17bf7764e771e090
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/123?utm_term=jumping+spider+enclosure PDF link annotation
    • https://cdn.sqhk.co/raserijene/t2igWO1/skater_skirt_pattern_no_zipper.pdfIn PDF document text
    • https://cdn.sqhk.co/vajirasavuz/hdgdjjf/history_of_conqueror_caravans.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/pa0kRhe/iphone_x_dtmf_tones_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411483/normal_5ff69dc98b191.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/4gesjiJ/candy_crush_soda_saga_online_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/tosilura/PrRbhcM/color_coded_chart_for_covid-_19.pdfIn PDF document text
    • https://cdn.sqhk.co/fezifoxunif/jjgjwja/new_bollywood_songs_2019_2020.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/tirimofufemukat/64223795496.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/wanasijepotekap.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/12310839516.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/hyperplane_seminar_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/45824941702.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/2019_calendar_template_psd_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/latest_odia_film_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/radio_button_in_html_without_form.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_off0000dcdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDB 5172 bytes
SHA-256: 17416c25015675490f8eef622b644a9b1a089e0e09a644242fa502d3d8516508
font_01_sfnt_off0000ee5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5E 10960 bytes
SHA-256: e2565dac6abe995fa4fa7c4aac9480819ab3816e617bd7b3114c3c5e7cf29195