Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03ec8edebe227d9…

MALICIOUS

PDF

85.2 KB Created: 2021-02-02 16:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3863eb17258724f2cb44b2c95df4a1c2 SHA-1: 3277ae02e9029a1ed954fdefd2b9bc7241211bdf SHA-256: b03ec8edebe227d9d27d59ee89466704abc1d0ac61e04fa29475c83341034cc6
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://leonvi.ru/wb?keyword=movie%20poster%20announcement%20template PDF link annotation
    • https://cdn.sqhk.co/vusutesilo/LJ3y0hb/jasozunefedupixafa.pdfIn PDF document text
    • https://cdn.sqhk.co/naxisedomak/hifghTS/99402292230.pdfIn PDF document text
    • http://pobuzajabazuwu.iblogger.org/how_to_be_tourist_guide_in_malaysia.pdfIn PDF document text
    • http://pefipegukanijel.22web.org/aqualine_pool_salt_manuale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nekezoxugi.rf.gd/69079177128.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/99176293316.pdfIn PDF document text
    • http://jidowadosul.epizy.com/13862407099.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/zivegalofo.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/manageengine_netflow_analyzer_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/20753913848.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/22050568388.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/mcgraw_hill_connect_accounting_answers_chapter_17.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/borderlands_3_cross_platform_ps4.pdfIn PDF document text
    • http://loxojazevujiv.epizy.com/92400554223.pdfIn PDF document text
    • http://luzawuwu.epizy.com/botaxaninorijo.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_off000112b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112B4 5144 bytes
SHA-256: dbdcb1516d1b370ad96c77537cf0523b65daed9550869a50af04b8ef28673c14
font_01_sfnt_off0001242c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1242C 10408 bytes
SHA-256: 632058eb644cf1698c76fbc2228995db15d844123aaa505af2ba31613268a782