Malicious PDF — malware analysis report

Static analysis result for SHA-256 2692c6e6926d4eba…

MALICIOUS

PDF

67.5 KB Created: 2021-02-19 23:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a28b41754d55da875d291c3e7b83ff1f SHA-1: bbf577fbcf88f93ce1fd14bc510f44ff11d741cf SHA-256: 2692c6e6926d4ebaaac6f63702c0dd982bf4f9672e44dc3877a444b9869d8184
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://druttle.ru/123?utm_term=marvel+spider+man+comics+free+download PDF link annotation
    • https://s3.amazonaws.com/pulavokaxe/sorugawamexelubug.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/angular_forms_radio_button.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387807/normal_5fede7c9bf396.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380871/normal_5fd0905b50cf0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482631/normal_60065c2d63328.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/RhcbhgI/solitaire_ring_with_2_wedding_bands.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476418/normal_5ff2d92dcd634.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/2HrX0EY/bowl._com_member_login.pdfIn PDF document text
    • https://cdn.sqhk.co/wanevakaxuma/e0djhCd/within_temptation_live_albums.pdfIn PDF document text
    • https://cdn.sqhk.co/diwomijo/i1nc9ic/prison_break_season_4_episode_10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474978/normal_6007ef755b7a0.pdfIn PDF document text
    • https://cdn.sqhk.co/jalizovi/0W3Ghay/pebijab.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/jhgihcL/65516308989.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/bixovawazekezodigavirul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://godimodasixor.rf.gd/cricket_mobile_apps_for_android.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_off0000c93e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93E 5456 bytes
SHA-256: ef242591fe264f8e3bd061d58d8c3b6ce74f4a93e277f66419e76d4a6c67bd08
font_01_sfnt_off0000dbdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDD 10792 bytes
SHA-256: 4d3c76c1c8d2520d8d84e6a0cc8cf1ee45ae23f23c4a557ef6698315b36db7f1