Malicious PDF — malware analysis report

Static analysis result for SHA-256 70926c6fdb5bdcca…

MALICIOUS

PDF

69.0 KB Created: 2021-02-17 06:42:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 63c5d50067707085ec1ceec4c110b82a SHA-1: 8f0c2a7f5f613e02a3abaaf48807243217b99112 SHA-256: 70926c6fdb5bdcca6528a469c615ab885bafd301d3ad36041c316516c2777963
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=bluedio%20t2+%20price%20in%20bd PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477620/normal_5fd647dfe6ffe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387924/normal_5ff329972249f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413110/normal_5ffd29071f6f2.pdfIn PDF document text
    • http://dagomakiluje.iblogger.org/nifakeriserawopo.pdfIn PDF document text
    • http://nisisigewu.iblogger.org/31931160653.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/dozuga/wumofaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/horizontal_line_android_xml.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/pijezu.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/badmaash_company_hd_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/bastien_piano_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/welejetasavovuxipuwip.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/4448203328.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/android_attributeset_drawable.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/8471424808.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/dedesixuxisugunemar.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/balance_sheet_format_of_insurance_company.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/risd_academic_calendar.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/futos.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c40c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC40C 5000 bytes
SHA-256: 8bde7ce0ea62f85ede9a14d5409aea3e4841ee9e454f0c38ff1267daeafddd4e
font_01_sfnt_off0000d515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD515 3852 bytes
SHA-256: bec7a4ef2b6abc0f8b4d5cd61dcb85e73abff0d238454ecaed4d8568c9b8f0d0
font_02_sfnt_off0000e115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE115 11284 bytes
SHA-256: 6a629f0ac7556d4352ad4e1e811b1684a1b3e1faf962737f2ca53fc3c69b7b28