Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fbebb2ffbb137c3…

MALICIOUS

PDF

68.0 KB Created: 2021-01-25 20:14:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b4dbe8f70a5939c7b02096d400161e11 SHA-1: 7d772256acf6f1e89c4f232a21c1a808948a4025 SHA-256: 9fbebb2ffbb137c326ee6c180bb446570aba64b8e2a769dd8895b28590a78175
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://seumenha.ru/wb?keyword=8%20ball%20pool%20rules%20on%20break PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483082/normal_600279898e000.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412905/normal_60050f31b52df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485929/normal_5ff1cb4763306.pdfIn PDF document text
    • http://gafujovinotu.22web.org/iti_delhi_admission_form_2019_date.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452846/normal_5fe14334ea358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464080/normal_600ab5834c963.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490529/normal_5fe5e5c337271.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493602/normal_60016e2218074.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499285/normal_5ff4ccc7bdc67.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392868/normal_5fcd01ccda2ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413468/normal_5fd2655c7e7d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374852/normal_5feffe775093a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416506/normal_600239190ab35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_5fdda09e469e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bezopiwuzalobit.rf.gd/wikede.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/cucumber_reporting_dependency_maven.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/37678661664.pdfIn PDF document text
    • http://bejiteviv.epizy.com/zatojolu.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_off0000cec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC7 5116 bytes
SHA-256: 696e3e50af66f19b74f843855798bcd8b8203570e41e52495519e64d231bead5
font_01_sfnt_off0000e033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE033 10240 bytes
SHA-256: 5f3329ba57bea88cb0e48e591f855802a6837ef5476e6bd1106ed8766ae1100d