Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dc5edd0f3a63ba5…

MALICIOUS

PDF

72.2 KB Created: 2021-02-14 21:48:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 845b02974a7ed5af6cfad13a2fbfe101 SHA-1: 50edca4bec9344a36ee2243123307ed86998cecf SHA-256: 2dc5edd0f3a63ba5fd72016e90b429a1d3ebf5a941a379e4caf7d1f60102f268
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=cindy+trimm+pdf+books PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369656/normal_5fda60cdf1140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5fd8b1e1996b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376874/normal_5ffbd678e55c1.pdfIn PDF document text
    • http://wovewor.iblogger.org/mind_games_for_android_free_apk.pdfIn PDF document text
    • http://sixawuragime.iblogger.org/11498948011.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381085/normal_5ff2bc8dc8000.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/loneminovu/17653825827.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/casper_linen_sheets_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/client_satisfaction_survey_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/adm_apk_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/ankhon_dekhi_mkv.pdfIn PDF document text
    • http://najaxobefirag.epizy.com/docker_arch_linux_guide.pdfIn PDF document text
    • http://jefokid.rf.gd/biosphere_2_experiment.pdfIn PDF document text
    • http://togewogovimome.epizy.com/jujotufukagikevowijat.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/14320793757.pdfIn PDF document text
    • http://nogomazarem.epizy.com/turbat_balochistan_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/freestyle_2_street_basketball_3_point_guide.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_off0000e015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE015 5156 bytes
SHA-256: 17f0f50f3d3b429eb95b505cf3f4e19c2bb3aae9cb04d2c09cd5c1b68b8218a2
font_01_sfnt_off0000f18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18F 10044 bytes
SHA-256: 9a02965069f5d2c70f57c56561623f93949b5aa6ca05cce4b649750dec40d315