Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce6f2a7099d40f3…

MALICIOUS

PDF

63.8 KB Created: 2021-02-09 15:56:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9e97e5327a430bd3d17c0f5b8ae83a79 SHA-1: 0e51d507c005637205caa4b45d43a2a723a90f3e SHA-256: 9ce6f2a7099d40f38c8244d1b307a02768e5a2eb267582ab31969df113772169
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=chutti%20tv%20logo%20video%20song PDF link annotation
    • https://wufipalowev.weebly.com/uploads/1/3/4/5/134595621/5556845.pdfIn PDF document text
    • https://cdn.sqhk.co/fajaleniwa/5cjhebi/top_2020_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/wujejelot/f7QwWQo/5474273790.pdfIn PDF document text
    • http://lunotikipadul.66ghz.com/laptop_bluetooth_app_free.pdfIn PDF document text
    • https://valutakawewa.weebly.com/uploads/1/3/1/3/131378791/c8bf852989a67.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/cRjIxm6/57726036867.pdfIn PDF document text
    • http://ruperamumafuvaz.22web.org/62660031682.pdfIn PDF document text
    • https://sugokumorol.weebly.com/uploads/1/3/1/4/131437576/dujibazirowarobegeku.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/3hbyVhj/diversity_visa_lottery_2022_registration_period.pdfIn PDF document text
    • https://zejebamusij.weebly.com/uploads/1/3/2/3/132302936/munuzuno.pdfIn PDF document text
    • http://motawosofi.iblogger.org/arista_switch_user_manual.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/pazatuv/wujoto.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/xurorazutalifipubewutujox.pdfIn PDF document text
    • http://vubixegigag.rf.gd/fuzawufumezulovege.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/33830124956.pdfIn PDF document text
    • http://tasodeporojunez.epizy.com/vadokamus.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/jelafiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/zajiwipavij.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_off0000bef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEF1 4744 bytes
SHA-256: 03e2e59f29012945e5ffc7e9d0f93b32291c9fe0d9cfd593430db49139586d3b
font_01_sfnt_off0000cf1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1A 9852 bytes
SHA-256: d8ed6ca94939c29901a80aab68364f83dc75a5b7f32bee5452c699e5ca05771a

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