Malicious PDF — malware analysis report

Static analysis result for SHA-256 1077d0d02453c2bf…

MALICIOUS

PDF

72.8 KB Created: 2021-02-24 01:19:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 40b021841d01b090f84b975d58dfdfc8 SHA-1: 7e6b522408e0e18607d75a4f8075c95fdf082748 SHA-256: 1077d0d02453c2bf29507b174c803e6ede733b6f8c6495954b4e1e4df7072b7d
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=ellis+island+virtual+tour+worksheet+answers PDF link annotation
    • http://vorecan.space/277653830428ypu6.pdfIn PDF document text
    • https://cdn.sqhk.co/fitamorigob/iiC2Ujd/soleburiz.pdfIn PDF document text
    • https://cdn.sqhk.co/lamikolo/n6hbgiH/vajiwir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459628/normal_5fca74780f016.pdfIn PDF document text
    • http://d-youtube.com/10671686612uymc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386334/normal_6009f1a624253.pdfIn PDF document text
    • http://gordei2d.com/caledonian_canal_skippers_guide3dnea.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobuwaxegu/oqhejfb/neogeo_x_gold.pdfIn PDF document text
    • http://biweekamnf.com/70085688788n3mkl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445864/normal_601e2231a7721.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_5fc7edcc9a535.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447487/normal_5ffdcea72354b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456996/normal_602681bd7bcaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458412/normal_60118a03ef10b.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/wewiro/31455205286.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/84292835614.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/bu_jhansi_scheme_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/dakiride.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_off0000e146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE146 5084 bytes
SHA-256: 58e544d0041fe4b1532f8883edd13905a9e5e3de73495a3a3a2ec89a2e796365
font_01_sfnt_off0000f2a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A3 10340 bytes
SHA-256: a22418b644c07dcdf93017787a448d68e4c72eb5c2c13af171b35b2c9f9589e4