Malicious PDF — malware analysis report

Static analysis result for SHA-256 6edce397e3caaf36…

MALICIOUS

PDF

73.1 KB Created: 2021-03-08 11:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b80f6e28f42efd316ce109bc00658d59 SHA-1: 5858e209968df26d77fec29df8bdcccd9011e4b0 SHA-256: 6edce397e3caaf36b3c316fbec8d026c5729e7f93fd1eb10b7a430d8d1a11a4c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/wix?keyword=nightmare+before+christmas+grandfather+clock PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486033/normal_5fd93c199cbbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501027/normal_60048584c4c3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414514/normal_60080c5147e0d.pdfIn PDF document text
    • http://sweetygirl.club/paroviloratumambrgd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473375/normal_602b95cecc3fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376599/normal_5ff134afcca69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409609/normal_60030b3babbb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383915/normal_5fc8a604e8363.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449774/normal_6018549b26efb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489981/normal_5fee43463cf97.pdfIn PDF document text
    • http://pristav.pro/6901519854okc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384320/normal_6032cc7b94d25.pdfIn PDF document text
    • http://soldonlakewood.com/59003819023pp9r9.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/xapijifas/volunteer_appreciation_certificates_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/what_is_the_xfinity_wireless_router.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/18157530200.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33c82f99-8586-4fd4-b313-a8bcb103a32e/70551044321.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e51cc213-bfdc-448e-86c1-d7afe84ac304/amp_triplex_9200.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/fudixubuligini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af5c9160-37b0-4937-97e1-fe062efd28b4/why_samsung_refrigerator_is_not_cooling_enough.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89482a24-597d-4d89-ae7c-25682d32238a/fizejatoralozelu.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/28875749469.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_off0000e01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01E 5608 bytes
SHA-256: d0f7d12d559fd71756644445a4fe18984e281cf2fb9ce6db3130043b25dabf0b
font_01_sfnt_off0000f309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF309 10492 bytes
SHA-256: 0683e84821cd0b3d53aef2e8d3e07ed49727655693fbb321c44e946ea0d3fcb9

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