Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e9994b5eefda237…

MALICIOUS

PDF

76.1 KB Created: 2021-02-07 06:06:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5aca547d5696c162105914f813c61622 SHA-1: afde800d351bf6718c6360ae929b40318bac6022 SHA-256: 3e9994b5eefda237369f909b1aed8ddfc074f8e364da99a15cf7fef31f050b9c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=conservation+of+mechanical+energy+worksheet+answers PDF link annotation
    • http://cabinetsly.xyz/download_google_books_as_online_freenau79.pdfIn PDF document text
    • http://cabinetsapp.xyz/performance_improvement_plan_francaisf9xlg.pdfIn PDF document text
    • http://lolkek.xyz/85841574406yjyrb.pdfIn PDF document text
    • http://immorta-cross1.club/bestiary_minecraftlt1vk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lalejifidesuwo.rf.gd/81221876872.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/disclaimer_form_template_beauty.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/androidx._appcompat._widget._toolbar_icon_color.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/been_vs_gone_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/80044488585.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/41334386092.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/12587009798.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/brtten_nete_hesaplama_forml_2018.pdfIn PDF document text
    • http://pifazudiso.rf.gd/15030941836.pdfIn PDF document text
    • http://wavubodalut.epizy.com/88011853265.pdfIn PDF document text
    • http://setowibuvi.epizy.com/bahubali_2_tamil_movie_isaimini.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_off0000eb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB42 5520 bytes
SHA-256: eadea2a1989a575c98b3b99663a844d113260a3f00dd572df80d4e87d4786216
font_01_sfnt_off0000fdfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFA 10832 bytes
SHA-256: 78d3e14e960154856702a8db36cf9f376f1c5a714bb94dc265ac61f1221b23c0