Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0fda23a56eba809…

MALICIOUS

PDF

71.8 KB Created: 2021-02-19 22:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: d339d1c9465f7bc2b9cba5c3c4617117 SHA-1: a848f972b86b5853afa65a9c452e7ebe8172071d SHA-256: b0fda23a56eba8091bb41daa90820656d5538bcb16dbde6e330b25740b3c94d7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=samsung+smart+tv+55+inch+4k+weight PDF link annotation
    • https://cdn.sqhk.co/bodujemep/Irhbhbq/41844501863.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/QZhbgfC/stacker_2_diet_pills_with_ephedra.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/jinUhja/sufinonesonomilufex.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/ihFjjlD/10835267095.pdfIn PDF document text
    • https://cdn.sqhk.co/sexasegavon/a2fifby/62042798180.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/jicggBu/spiritfarer_characters_locations.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/0zjyUja/nbc_sports_network_premier_league_schedule.pdfIn PDF document text
    • http://idealica-italy.site/31784069260xta8c.pdfIn PDF document text
    • https://cdn.sqhk.co/miwizawi/hd5jjpt/21104189342.pdfIn PDF document text
    • https://cdn.sqhk.co/wexopaxine/6NjfKBo/spiral_staircase_outdoor_kit.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/sisaxu/voxopaviwinodo.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/metevujanajogafidobuna.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/far_cry_new_dawn_wiki_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/fusimigu.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/zaduvuzifuzovanarajakos.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_off0000d8d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D6 5712 bytes
SHA-256: abf773d17f1913a65743948ffd8f00ba729d8aed1580250522b001cf59a3a286
font_01_sfnt_off0000ec42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC42 11252 bytes
SHA-256: c60310ab0033bb683e28d2ac88645cc3bb68040ddb8826712a473df34ab476b3