Malicious PDF — malware analysis report

Static analysis result for SHA-256 29afb58d7288687e…

MALICIOUS

PDF

73.1 KB Created: 2021-02-13 11:39:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4936951c8d9f3de17bee88d65a2a47fe SHA-1: 39710312d7774baa9b63743107fd11da694c07aa SHA-256: 29afb58d7288687ebab6f0ef7f25cdef01f63fc2277e012bbd24b1ffc28eed5b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=west+middle+school+ptco PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4382613/normal_5fe4b0708c881.pdfIn PDF document text
    • http://lezebapobal.22web.org/cra_reporting_foreign_pension_income.pdfIn PDF document text
    • https://cdn.sqhk.co/dubeminap/e3Ligih/tarupeteturuwas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500438/normal_601317767214f.pdfIn PDF document text
    • https://cdn.sqhk.co/rogapakaler/jcbZbBr/58795773259.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368956/normal_5fc68a518f9a8.pdfIn PDF document text
    • https://cdn.sqhk.co/divekezor/oQohcrL/roundup_concentrate_mixing_directions.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/bejeseja/adobe_reader_8._1._0_free.pdfIn PDF document text
    • http://kepisuv.epizy.com/laras.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/volose.pdfIn PDF document text
    • http://popadugabi.rf.gd/fitted_crib_sheet_set.pdfIn PDF document text
    • http://tokofelutuj.epizy.com/suvopesitalonatosida.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/android_barcode_scanner_app_github.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/2000_to_2019_bollywood_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/present_simple_forming_questions_worksheets.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/jijipewav.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_off0000e46b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46B 5020 bytes
SHA-256: d79c64a4089c64c2fd9161c96c99d6037d0bdc7e66765a8e9383a2cb9790633c
font_01_sfnt_off0000f56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF56B 10080 bytes
SHA-256: adec31181c4a2e53377d4fe07f9a1b92d8815d31f6b2f1431b4a56d69b3fd6a2