Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab2a9954f157f8e…

MALICIOUS

PDF

85.1 KB Created: 2021-03-02 07:15:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 42aa28056bc712dcd1b976f2849c7d78 SHA-1: 37b49fefbedeae58f71ebb66329425eed109f221 SHA-256: 3ab2a9954f157f8ef65084f413270426ba93085150507118414efae9a47f50fa
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://ponafet.ru/wb?keyword=can%20you%20romance%20cora%20after%20peebee PDF link annotation
    • http://abreudesigns.com/8768980715l8l3q.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/pisedij/99226512215.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/megofamameseke.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/all_photo_size_list.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/adiabatic_demagnetisation.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/impact_of_globalisation_on_indian_economy.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/snowbear_utility_trailer_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/91271021935.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/pajobojonajalozetuvulu.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/key_clamp_handrail_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/clinical_research_associate_resume_template.pdfIn PDF document text
    • http://mirajiletumumi.epizy.com/47845269238.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/drafting_paper_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/rejapesisag.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/belkin_router_apps.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_off00011280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11280 5096 bytes
SHA-256: 942e1333dfbacc41395aba0abf0bcdeefa1410d04c1135a5512156c6aebf20cf
font_01_sfnt_off000123c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123C8 10504 bytes
SHA-256: d1e94acd1c7e3825dbd986900e7415bc315be5988a099747dbe829bb51ad059b