Malicious PDF — malware analysis report

Static analysis result for SHA-256 baabde3c044e1023…

MALICIOUS

PDF

69.6 KB Created: 2021-03-02 20:10:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8c6bc91be81fb41856e8caf25a6e2bba SHA-1: f9b8c712c38f65b6e616b144854b42999c5f4e65 SHA-256: baabde3c044e102309972482960c0a736401ce758abbc6577bea72a25b4acf5e
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/award?keyword=how+to+adjust+rainbird+5000+sprinkler+head+distance PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382949/normal_6025aabe27f7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389104/normal_602c787633a17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387567/normal_603d73f2efaae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503050/normal_600a092297a9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465142/normal_5fe54a06bcac4.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/llhicju/midawowipuvirate.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484818/normal_6005d7e798bf3.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/jeQR48q/19852563081.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385436/normal_5fde2d0fb32d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393625/normal_602b73efd795c.pdfIn PDF document text
    • https://cdn.sqhk.co/bisegepamitu/avQjjjd/17830501037.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/tidigudetefumof/42053325382.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/analysis_of_othellos_final_speech.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/4720582111.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/bejagefafe.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/office_filing_system_template_excel.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_off0000d2b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B5 5760 bytes
SHA-256: 7b1f8c18daef8e2e0600f7d92b299da140e030d150b973cc4a737a26102dd8df
font_01_sfnt_off0000e65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE65E 10232 bytes
SHA-256: f6f72e7b6e34ec5688fc4212cd5bae46c8cc3f8fb88366d955d9e66aeb2ed017