Malicious PDF — malware analysis report

Static analysis result for SHA-256 be46beb382b9ae76…

MALICIOUS

PDF

68.3 KB Created: 2021-03-03 07:49:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5f859fc3e1ed006849e714b3dbecf0d0 SHA-1: a8d74f3443b6d8815860de57d62f409edf2f7aab SHA-256: be46beb382b9ae763132ac481e04e3d79da6bfe304dda73945751a332b10f60d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://zajinet.ru/wix?keyword=human+anatomy+mckinley+4th+edition+pdf+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381287/normal_5ff9c2f1b996e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498345/normal_6004b63ccccf2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423699/normal_5fcdb893dca9b.pdfIn PDF document text
    • https://cdn.sqhk.co/kewesowovim/Aidr3hj/woodland_park_zoo_sloth_bear_cubs.pdfIn PDF document text
    • https://cdn.sqhk.co/buxifuludo/hh8vCjh/61063521557.pdfIn PDF document text
    • https://cdn.sqhk.co/bodegife/nhhNFA1/jirim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414342/normal_5fde5ca99d398.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/iu2mAAu/alien_armageddon_duke.pdfIn PDF document text
    • https://cdn.sqhk.co/javukapegami/erajcuL/89310102441.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://depegiwisa.epizy.com/does_tris_and_four_stay_together.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/20834650042.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/26795357088.pdfIn PDF document text
    • http://vogidefoxafubis.epizy.com/organization_chart_diagram_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/fotojitajijo.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/99452532711.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/email_marketing_templates_for_b2b.pdfIn PDF document text
    • http://vipowiso.epizy.com/zifevumemumobex.pdfIn PDF document text
    • http://lozadubevapoke.epizy.com/pomunekakibezuxugaxijuva.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_off0000cd2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2C 5524 bytes
SHA-256: 0d67bf4777432671116ef45255ca3f6d94bc427bb4b1dcfefa0820fb555009c6
font_01_sfnt_off0000dfe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE7 10464 bytes
SHA-256: ee416503a0efe135735fded6e108e14b417e114b92ccb8dc262ad9c4b081dc49