Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe1645d88149a4e…

MALICIOUS

PDF

71.8 KB Created: 2021-02-10 03:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d20bc877384422d55715af280639d2a4 SHA-1: 5b2abb8175f9f504e36f790e806598ad239ef131 SHA-256: cbe1645d88149a4ee58a168507dc3ac9dc11f69c22e18e45cbd71fe436d85089
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/aws?utm_term=stylesheet+css+l%25C3%25A0+g%25C3%25AC PDF link annotation
    • https://cdn.sqhk.co/niminililez/Pwggajd/dejunikarolinub.pdfIn PDF document text
    • https://cdn.sqhk.co/xapawavuma/hjhzgde/login_bet_9ja.pdfIn PDF document text
    • https://cdn.sqhk.co/zisuzunon/gJhdjaO/kabononulume.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/ijiehie/rerezikikisuxodawe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_601b289ab146f.pdfIn PDF document text
    • https://cdn.sqhk.co/jokawefezo/FgdjdVH/virus_scan_online_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/jebavimot/jZhgBif/find_my_device_android_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/JgiNPid/the_chosen_season_1_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/rheMeWc/natodisizuzi.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/6HIK8ig/pomudupixejikiwiludakij.pdfIn PDF document text
    • http://ig-copyrighthelpcenter.com/7478365402cqa1s.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/zurovajij/nabipoluxewune.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/across_the_bridge_book.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/new_bengali_movie_song_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/oh_baby_girl_tamil_song_free.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_off0000da06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA06 5248 bytes
SHA-256: 917084015d6d910826107cfde1ea333ca44c7d8f8ce49d11007350f6d01b843d
font_01_sfnt_off0000ebea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEA 10804 bytes
SHA-256: 89b8a083b433e190a77cb3dee84bf70ce5f9de9ba1219e54a33de3eb90923ac9