Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e729905ee679dca…

MALICIOUS

PDF

69.2 KB Created: 2021-02-24 09:49:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 82347ebedfb467f920bbe2590c4da352 SHA-1: 7e422863be7e8297d5bab1721eacb8fe7bf32d4a SHA-256: 5e729905ee679dcad3c2e2028030d8c5883fe18fe864ccc9930cc3adbfa6a246
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=bowflex+xtreme+se+cable+routing PDF link annotation
    • https://cdn.sqhk.co/mixaluwekitu/cDKgghh/negotiation_skills_course_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_602195f6639e0.pdfIn PDF document text
    • https://cdn.sqhk.co/rukeditele/1jjidhe/wojna_polsko_bolszewicka_mapy.pdfIn PDF document text
    • https://cdn.sqhk.co/xorazasuno/RhbcjaG/pearl_store_bdo.pdfIn PDF document text
    • https://cdn.sqhk.co/wenegifuteg/Njh6Dgg/woduwezum.pdfIn PDF document text
    • http://bubble1.space/50136194369su0ek.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/6wjhhfm/xilerifexoxe.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/sojenozap/nexokoxazalo.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/86471736213.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/gewubagiwifovuninabelagi.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/posefadixinavelotu.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/south_movie_in_hd_2019.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_off0000d0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0ED 5548 bytes
SHA-256: c1172684d7deddf9d4359491191d0a1fa603f0aad280c2862ee1c550e174bf3a
font_01_sfnt_off0000e3dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DC 10224 bytes
SHA-256: e841dbf338354c926d0bed11c3ebebcac454fb46405d1c68e5fd400a18d38265

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