Malicious PDF — malware analysis report

Static analysis result for SHA-256 78d4c251e4470bd1…

MALICIOUS

PDF

66.2 KB Created: 2021-02-23 06:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bfed61ae6e765d280922e30f2c20f0f9 SHA-1: d4ad5e7c4511404776b831664f366eb07b7df9e4 SHA-256: 78d4c251e4470bd1af0a938b2cc21724ccdde6490eb079860d705c9300f2444e
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://seumenha.ru/wix?keyword=lifetime+fitness+rochester+hills+outdoor+pool PDF link annotation
    • https://cdn.sqhk.co/toxodabatot/fjjhkjb/marble_blast_legend_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sowumavag/lLjachg/medieval_life_simulator_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/novujarogoga/hjjEjeW/24232375869.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468563/normal_5fc7d205a85b0.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/gchbE2d/xuwufoda.pdfIn PDF document text
    • http://trastenmyqort.online/aspen_colorado_court_reporterdmcpw.pdfIn PDF document text
    • https://cdn.sqhk.co/letonolomo/bBSjhje/riliva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377116/normal_6027254c0fa07.pdfIn PDF document text
    • http://podjem2.club/urban_ninja_project_frankfort_kypm42o.pdfIn PDF document text
    • https://cdn.sqhk.co/kupawusel/8E468PB/adorable_pictures_of_baby_yoda.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/eJgfjbK/payback_2_the_battle_sandbox_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369933/normal_60224b93e19c4.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/jevopemosod/fifty_shades_of_darker_full_movie_download_in_hindi_dubbed_hd.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_off0000c77d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC77D 5124 bytes
SHA-256: 7fffc39889847862516112faa3e0c0e4bd64081e4aeb7e3109ad91602c2fce8e
font_01_sfnt_off0000d8cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CF 10388 bytes
SHA-256: df9abb6ae5619f74f67faf34af081a35fad78786ba4ec6cf808062c0214d074d