Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba9797f6a56c488…

MALICIOUS

PDF

71.0 KB Created: 2021-02-15 02:53:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 601dae6155c8c20da7917ce153148142 SHA-1: 520455ecf411204ca0b3af0c0bd066b7bb5c0ec6 SHA-256: aba9797f6a56c48829aa34b59069efbc1e29bf3980107e1ab261ada0b33a86b9
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://leonvi.ru/wix?keyword=factoring+review+worksheet+all+chapter+6 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387929/normal_601c6b3497403.pdfIn PDF document text
    • http://wovewor.iblogger.org/ny_biennial_statement_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418566/normal_5fd973c47555c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422371/normal_5ff60694c67c8.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/54459093841.pdfIn PDF document text
    • http://lesizuli.epizy.com/71242034773.pdfIn PDF document text
    • http://buxazub.epizy.com/texas_child_support_direct_deposit_form.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/58690625911.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/autonomous_research_blockchain.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/design_sponge_city_guide_portland.pdfIn PDF document text
    • http://guxajez.rf.gd/best_guided_meditation_podcast_spotify.pdfIn PDF document text
    • http://vikokaras.epizy.com/autograph_bengali_movie_free_full.pdfIn PDF document text
    • http://mabagojovas.epizy.com/19383378110.pdfIn PDF document text
    • http://lufeneweb.epizy.com/bopapajulasadis.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/c_g_sheet_metal_installment_inc.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_off0000d7e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E7 5520 bytes
SHA-256: 19b66b66a22e978599b780b35da53fa95753b6019bc92aac0a553e1373dc7e80
font_01_sfnt_off0000eac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC1 10592 bytes
SHA-256: 02c873e4a0c0a6e90aa01ddbe169b8fa8cff769fca07413d5a15f609ed0d3c1f