Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda650cb605507d9…

MALICIOUS

PDF

71.3 KB Created: 2021-02-11 14:54:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 910d18e5b9d7fc2c62587a8c91c3f0a5 SHA-1: 7fca79de82b5adf4171d1ff8b38f965b22921328 SHA-256: eda650cb605507d963a42e8874ff45613f1df9006371ecc35b72be3e77db7b1a
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/wix?keyword=the+millionaire+fastlane+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4466146/normal_5fd660b9b7e63.pdfIn PDF document text
    • https://kifeketefisub.weebly.com/uploads/1/3/5/3/135347095/1775490.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529281/normal_5feb99a709223.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413468/normal_5fdc553543f93.pdfIn PDF document text
    • http://pubguckazan.com/la_division_de_la_fisicaw4zq1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496005/normal_5fe29c5394b90.pdfIn PDF document text
    • https://cdn.sqhk.co/temirikuji/f7anier/90448824555.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/iihWzia/xonutopugideresoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486365/normal_6024cd332fd1e.pdfIn PDF document text
    • https://cdn.sqhk.co/banozesimane/Jqjdjfb/32829588750.pdfIn PDF document text
    • http://arenaprobet.com/vegamigojesozumigu9ya3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483349/normal_5ffa5f598734d.pdfIn PDF document text
    • http://gprofights.ru/72830668516mxv5a.pdfIn PDF document text
    • http://tricitysikhs.com/bomotawovumuxob4tc0.pdfIn PDF document text
    • https://cdn.sqhk.co/fegadosijete/eGjgWhg/high_density_cross-_linked_polyethylene_foam.pdfIn PDF document text
    • https://feronokemafa.weebly.com/uploads/1/3/1/1/131164109/1911335.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451023/normal_5ff21adc1a04f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374953/normal_5fc9f6004d0f9.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/dazifozixawus/workshop_agenda_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/22258647519.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/79999592687.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_off0000da0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0A 5324 bytes
SHA-256: 6107903084e3db9b72d04575dc9fd981b602c732c7bca725625a3575c5ad379c
font_01_sfnt_off0000ec09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC09 10372 bytes
SHA-256: 9d297bc51607b2879c294cbf118ac288ecf2cd17359a3799183089b0916baa05

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