Malicious PDF — malware analysis report

Static analysis result for SHA-256 d90acd8980171d89…

MALICIOUS

PDF

68.4 KB Created: 2021-02-17 16:22:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 67164fa40e1d5688ad46993b7fa6f66c SHA-1: 6cbdc05a25473bb3c3fca034206c2ca70f8319fc SHA-256: d90acd8980171d8900a286aa95eedf3d26deec99ae1759aa8b5e9d6f65f2e5d0
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/123?utm_term=xgimi+remote+not+working In PDF document text
    • https://cdn.sqhk.co/nowavutu/JXjejf6/dodiputoserulogogalisi.pdfIn PDF document text
    • http://lifeeuro.info/granny_s_kitchen_claremont8xjbg.pdfIn PDF document text
    • https://cdn.sqhk.co/noxibogalu/jbsxhcV/tuzuvejaxomenawidovuju.pdfIn PDF document text
    • https://cdn.sqhk.co/jelivapizivo/hdig5gh/toca_kitchen_sushi_restaurant_hack_apk.pdfIn PDF document text
    • http://tokio-2020.fun/88358715689xakea.pdfIn PDF document text
    • http://checkmycredit.info/lonigamazggr.pdfIn PDF document text
    • http://reawont.online/guess_the_anime_quiz_roblox_answersh1u0c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://natadomemorad.epizy.com/tasalabomerukijajiguten.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/data_analysis_introduction_to_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/cowboy_bebop_intro_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/35412039772.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/everglow_piano_sheet_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/golden_goose_deluxe_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/wejumizesefonesum.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/holland_tunnel_traffic_report_now.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_off0000ce9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE9C 4716 bytes
SHA-256: b337db68914ff7bfa0faff8c768270b562f31dfb5b497d04ffb34e5dc6ff7bbd
font_01_sfnt_off0000dea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA9 11196 bytes
SHA-256: af3f81a2140f10d3bdc324cd27dc27e7ad28c571f8acae7207e300db5b16229d