Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2ca249448a31f4…

MALICIOUS

PDF

76.1 KB Created: 2021-02-10 09:57:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 56448b8b8ebc80138681c460c165b0f0 SHA-1: e41138bc0b05a3a4dd41099fe3f965528953432f SHA-256: 1d2ca249448a31f454342c5a599dd33156cdca74f853dffbb9ee26f627de712f
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://jottigo.ru/123?utm_term=ann+magnolia+tree+growth+rate PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378151/normal_5fe6f38e4f57a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374853/normal_5fc8c104cde6a.pdfIn PDF document text
    • http://copyrighthelpbusiness.net/64242544477h7i84.pdfIn PDF document text
    • https://cdn.sqhk.co/kapideto/Q4jiKge/30779976159.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487897/normal_5ffbfba41fd53.pdfIn PDF document text
    • http://christinaanddavid2019.com/download_impractical_jokers_season_4jnfgz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496597/normal_5fc939b25de88.pdfIn PDF document text
    • http://apparently-home.com/ios_13_for_iphone_680mcy.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/jixerubowi/4127943795.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/design_language_system_vs_style_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/48169555220.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/dan_patrick_show_on_bleacher_report_live.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/reportage_djihadiste_francais_en_syrie_france_5.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/82786536495.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/20447914445.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_off0000ecd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD5 5000 bytes
SHA-256: 0b913409ba4be758c077af66f53fd99db1bf54803d72dfca0b26d3d5926dc4fc
font_01_sfnt_off0000fdb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB7 11124 bytes
SHA-256: b43811e5e2351c48fc06ec09c58aa476a86ce74ece2e34f9bdf8deb7f1fe3daa

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