Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce8ad5600e6bd1d…

MALICIOUS

PDF

81.1 KB Created: 2021-03-01 03:40:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 05eb2913e388ec9313283ab1445e78cf SHA-1: ac66838bf34eddad28fc6b3facf5a38f89a553db SHA-256: 3ce8ad5600e6bd1d458d6102cf846ed3d28dcf8800a8fe056f297be379850052
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://jumiwimov.ru/award?keyword=how+can+i+write+a+diversity+statement PDF link annotation
    • https://cdn.sqhk.co/niporatibu/hhbP0ji/lixupomenuvinopigeginuvag.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxogife/chi4vVI/lezetaretukub.pdfIn PDF document text
    • http://wivuperafuzo.mypressonline.com/95890131775.pdfIn PDF document text
    • http://mp4.design/nirok1nvji.pdfIn PDF document text
    • http://sozaxesugoj.mywebcommunity.org/49635031491.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/ibrcmW0/superhero_font_generator_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485436/normal_5fffe48c218f0.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/39365191367.pdfIn PDF document text
    • http://padlamadla.site/world_superbike_2020_tv_schedule8yd1g.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/libosokune/xobilud.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/61487091596.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/pevotojirobe.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/72580237450.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/tazebirofesaxasotepivekow.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/petituxipefu.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_off00010156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10156 5268 bytes
SHA-256: 790324622b701e068b7dedf7b1b6b00b839d302d75be7b9e916316237b28d6a7
font_01_sfnt_off00011341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11341 10700 bytes
SHA-256: 63991444fc8d188f29cadf10d448ced76ab425f85727ec7a94a06fad76a344e4