Malicious PDF — malware analysis report

Static analysis result for SHA-256 73298e802833bf29…

MALICIOUS

PDF

69.7 KB Created: 2021-02-19 20:39:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a9e71be93504b4683f5aa04b21e5ad90 SHA-1: 02e8c6e535e72681a87287e07734c2c2ccf04b91 SHA-256: 73298e802833bf29827d348c82ccacea2c9fd814ab42b808624592e4b657203b
136 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
  • 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://baarspo.ru/wix?keyword=and+then+there+were+none+guest+profile+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445871/normal_5fe3b1c1d481b.pdfIn PDF document text
    • http://podjem2.club/zopajejeth2ey2.pdfIn PDF document text
    • http://bitsracing.net/34865876900c1n2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421342/normal_6006317546bde.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408704/normal_5fcbd6d53cd95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380531/normal_6007d5e34e636.pdfIn PDF document text
    • http://xojopimo.22web.org/15162652412.pdfIn PDF document text
    • http://teleporttur.ru/84408151858xc82a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384831/normal_5ff7dc89d38e4.pdfIn PDF document text
    • http://smartycredit.info/gorutanugiradanarafisuzol07ex.pdfIn PDF document text
    • http://jopalebifu.iblogger.org/small_business_expenses_template_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413982/normal_6002598a356c8.pdfIn PDF document text
    • http://famafivas.iblogger.org/1995_bayliner_ciera_2655_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_6016ffa42b66f.pdfIn PDF document text
    • http://itawegan.fun/best_world_war_2_movies_on_hulu80rt0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kaxanelasomitov.rf.gd/83588415502.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_off0000d52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52C 5384 bytes
SHA-256: 088c50ca8184c522d3ae930e8ffbbca62f41b86433c9b12a4a8f92cd654b0fa5
font_01_sfnt_off0000e78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78C 10088 bytes
SHA-256: 9606dcb146f8de2efd8de741ab9d2e023fb5008a7584a2bcce9f711574de608d