Malicious PDF — malware analysis report

Static analysis result for SHA-256 446738f86769568e…

MALICIOUS

PDF

69.9 KB Created: 2021-02-23 11:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ec46a386352ad1343b8ed0a237141908 SHA-1: 6f63d390dceafeb64cf49d95973d54580f505e79 SHA-256: 446738f86769568e698ca82fea58a3fa5854db3504d0bb3807486fbc4cb0c7f6
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/wix?keyword=movie+drinking+games+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370309/normal_5fc9078a5a9b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465919/normal_601921d2bf4ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402932/normal_60081ba46bc23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383582/normal_5ff6611a176c9.pdfIn PDF document text
    • http://dutov.org/zizasibebosolilivab4dswy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481403/normal_5ff64f89731f6.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/cIEjfhg/27549347494.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/YCfaDhh/petezekelozubuzivap.pdfIn PDF document text
    • http://smartradiobf.ru/sizukiwisejatexesnxf42.pdfIn PDF document text
    • https://cdn.sqhk.co/liweruruzed/XihoAXT/dumikel.pdfIn PDF document text
    • https://cdn.sqhk.co/fisoxinizo/H1T1ijf/gap_crossroads_mall_portage_mi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477913/normal_6016e0868c951.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484639/normal_5fd32ab1b6612.pdfIn PDF document text
    • https://cdn.sqhk.co/tonufipu/jibgchb/bits_and_bolts_birkenshaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369766/normal_601048f29627d.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/rekorewexidiwo/13th_finance_commission_report.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_off0000d3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DD 5516 bytes
SHA-256: d273a10d0fcb30df874512e471bbfa2f7921fe8091dc00ca6e5a9f4ea362d4ba
font_01_sfnt_off0000e69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE69D 10560 bytes
SHA-256: bd9a60aa8c2a7327d79852110b4784d7c9b681496022c25770207fe1596156be