Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dd028cea7d9538e…

MALICIOUS

PDF

70.1 KB Created: 2021-02-12 19:47:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1319cad3aaff3049837d5567a3b0ecba SHA-1: e7ed54a1f89321a23a134daee295ffb8f7f0fedb SHA-256: 0dd028cea7d9538e5340c98f92004b49f391c26cbd6c4b8e32ffd57e60c9b19f
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=amanita+flavoconia+trip In PDF document text
    • https://static.s123-cdn-static.com/uploads/4373757/normal_600751b6b43c0.pdfIn PDF document text
    • http://pe50off.pro/64031998594b8713.pdfIn PDF document text
    • http://successinyourlif.website/85747470157jyql6.pdfIn PDF document text
    • http://sakhavto.ru/29638773117cv39i.pdfIn PDF document text
    • http://study-english-04.space/basketball_stars_apkuh2sb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387411/normal_5ffd2f094e779.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466408/normal_5fe18e521876e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450156/normal_5ff5b8e1c729b.pdfIn PDF document text
    • http://lnstagram-blue-badge-form.com/tap_tap_heroes_mod_apk_2020n0n0s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415334/normal_5fcedae7b1bd2.pdfIn PDF document text
    • http://requiredjokblog.com/crash_of_cars_onlinesqgvd.pdfIn PDF document text
    • http://buloshnaya.site/my_contraband_summaryz8mnj.pdfIn PDF document text
    • http://xuponigivixi.66ghz.com/ankush_raja_2019_dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463010/normal_60212a721bc32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378641/normal_5fdcb786e51ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gagelenobom.epizy.com/basic_english_grammar_test_free.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/98191616137.pdfIn PDF document text
    • http://jefevuxivux.epizy.com/boxivo.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/tisumuxagukekekufalefasa.pdfIn PDF document text
    • http://semodozafilisu.rf.gd/biochemistry_questions_and_answers_for_medical_students.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_off0000d832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD832 5032 bytes
SHA-256: c3f9b8ce66406211ffe0231859ae4b45570940c08bf27c07cb5ee96ed7839229
font_01_sfnt_off0000e945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE945 10008 bytes
SHA-256: 0e96e5855e5bc52aa50f2e3c51c454b832c4c760f4d25cb091c518fb8256a619

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