Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dc7092839b97ebe…

MALICIOUS

PDF

71.9 KB Created: 2021-02-17 15:40:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: df4686150f5f63793ad3b36e8d7262b4 SHA-1: 45372cd51391a87ae82fc37dde6173cecc0217d5 SHA-256: 3dc7092839b97ebe97a3c3166cacefa7297ef821eeec3c609354eb044b0ad99e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=kid+icarus+uprising+fusion+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4426407/normal_5ff1e61c27fc3.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/jaghcji/counter_strike_source_ragdoll_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379718/normal_5fc61b706108a.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/itLOhia/tigubisatexi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466143/normal_5fce65d7f34f5.pdfIn PDF document text
    • https://cdn.sqhk.co/pasepizut/dvjb6MQ/the_solar_system_formed_from_brainly.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417314/normal_600ade536ec8c.pdfIn PDF document text
    • https://cdn.sqhk.co/fopujetoros/hiQhbZB/46968072620.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387056/normal_5fdb2d25bba98.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/b9whgjf/zutariporiside.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/ivmhdxw/xozasixomir.pdfIn PDF document text
    • https://cdn.sqhk.co/woxiwovar/aQVmyMb/remix_maker_download.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/gumegulaxi/swift_learn_to_code_1_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ceb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB6 3900 bytes
SHA-256: a22513b5b7d28f47ae19f0ac864c3f04764a1ddbf4102dccb7ef9d94697e5efb
font_01_sfnt_off0000dc7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7A 5260 bytes
SHA-256: fab374dd6a5f5af73df1786de89eada7ba8b5dfbfbf035555e8b3b3c3ca58319
font_02_sfnt_off0000ee76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE76 10788 bytes
SHA-256: 05c42801b2aec1001807e61deb435eced080f31d3b70f227f32b140d044930d2

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