Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb1a7760f829d87…

MALICIOUS

PDF

72.1 KB Created: 2021-02-13 19:37:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1873867e37fa7abd180f3e10471234ce SHA-1: ece152a69b7dfadfdd36c745c1c95c0fc41f3e3e SHA-256: 6bb1a7760f829d87df23c9dc8b05ce29f0c12c130f48979c5f204005bf07d979
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://maypoin.ru/wix?keyword=dragon+age+inquisition+game+guide PDF link annotation
    • http://mnogoturov.com/astm_b117-_11ogj2r.pdfIn PDF document text
    • https://cdn.sqhk.co/wezokobuli/jeggVjf/bixogunurex.pdfIn PDF document text
    • https://cdn.sqhk.co/wozepefiga/bjarXkb/rujuxirijimojegixuju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375716/normal_600bbe9a007aa.pdfIn PDF document text
    • http://konsalting.info/leadership_behavior_definitiontg6i4.pdfIn PDF document text
    • https://cdn.sqhk.co/zerurukoraju/jeiidgd/snapping_turtle_eggs_hatching_video.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/jgBidDF/blocky_zombie_highway_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/niduzabunu/dQC5jgi/us_beef_packer_margins.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/Ejcgjgj/gun_notification_sounds_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/jgdcVgg/word_search_pro_answers_finder.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/jbii4RP/15188672958.pdfIn PDF document text
    • https://cdn.sqhk.co/nokulebepoba/hacIid9/raxunejapotamakeno.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/suxiweke/20282270524.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/50502532713.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/mcafee_antivirus_for_dell_laptop.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_off0000e099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE099 5236 bytes
SHA-256: aaa7e415cf62659c3716ac241079237db6b2f19f01931834a1b2a7ebde54bb54
font_01_sfnt_off0000f24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24A 9640 bytes
SHA-256: 24c811435c469324f31e6b9ef3a0b43dcfab38ae515a1180ed200f0ba4181cc9