Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc34e1ee9be061c…

MALICIOUS

PDF

63.4 KB Created: 2021-02-14 20:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3fd52dcb885944b97c7bf506a2fefb65 SHA-1: 2c52083bb22b69401c6f8a818e3cf69944bb25f5 SHA-256: 5cc34e1ee9be061c7081704aef02942f6f29108d7702394f38ee0ab68582bbab
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://jacksth.ru/123?utm_term=zone+of+the+enders+jehuty+model PDF link annotation
    • https://cdn.sqhk.co/jubelupubex/djda5hb/business_model_canvas_vs_lean_startup.pdfIn PDF document text
    • http://obmenkalnr.online/persona_5_exam_answers_7_13146kq.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/lxKVjjV/pomulaxufezo.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/ihhcieT/zemorutuzid.pdfIn PDF document text
    • https://cdn.sqhk.co/zowesifona/ighnwic/redegipodotezaxubarazow.pdfIn PDF document text
    • https://cdn.sqhk.co/madagijoj/hhfEgdM/road_rash_3d_rom.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/JGjjn8s/15283671941.pdfIn PDF document text
    • https://cdn.sqhk.co/gitopedevid/4hhkchc/tor_browser_linux_mint_19._2.pdfIn PDF document text
    • http://simcars.ru/200546122027bqkn.pdfIn PDF document text
    • https://cdn.sqhk.co/gusoguribus/0Z8fBar/36556370829.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/kgedgfe/birdies_raised_beds_nz.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/cjdhgge/superhero_skins_for_roblox_boy.pdfIn PDF document text
    • http://mivetys.xyz/ales_konu_anlatm_indir9su00.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/pusolefosex/winnie_the_pooh_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/6761146038.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_off0000bab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAB7 5072 bytes
SHA-256: 1d0f52bf54b7afbbaa8bca424be41c6f23ad0d0e2823cad357e1163eb036c0b7
font_01_sfnt_off0000cbe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE3 10588 bytes
SHA-256: d108d25f978ff73d81f86c3282d5e51997c970d66b7eb4380baa06c7e75d5bf8