Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6d181201965935…

MALICIOUS

PDF

48.6 KB Created: 2020-10-18 01:53:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fcff5ba0dea43e24098a6d9ccdf519a5 SHA-1: e2f2aee145e6e019d323c0cc5903d26e0ff054d2 SHA-256: 0f6d181201965935f7005be526e842d1dbf99b29dae2f1fc04c3279d67b79bfd
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ttraff.me/123?keyword=nespresso+capsules+guide+uk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f883735cfccb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f8b73858ce85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5f87f9dca16e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f88880e91a38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367916/normal_5f8b550a9568f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366388/normal_5f89e56f6a2f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368494/normal_5f892c00e8d58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372086/normal_5f8b749a93d37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369506/normal_5f89acfbdefcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367914/normal_5f8916e363f6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f86f4cf17f24.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/63140b83-955a-43d7-a9d6-7446982d5c49/gevozawaxefuvuki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4324bd26-0ec5-4f52-8781-874a383f845e/dejudagotawuguzabedazami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f113c269-748a-4704-98ef-c9901ed374ff/noronoxebar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef267af0-f8fb-42cc-a069-eb9036d57735/23728412639.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7814e7da-34d7-4c71-8cc2-9840c7f330dd/77950961357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/835f0ff2-590f-4d9c-a67a-bf83d5e49635/sapajenujugamixuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac068e55-56b5-4b84-a7e6-c2a8036b1984/50402864190.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/287795cc-1d16-4e55-80c6-621bd54161a2/97407780566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8b83a27-0b18-47c6-bc00-f7cc61205045/44052365538.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f2814a6-01a8-4853-ab6e-373f14f145e4/robezadodidakuti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18cb7f33-d2e9-4791-a1b5-15f0ead1c60f/rikadeketixukivoxipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad53cd4-a8e2-4f04-9f62-58668859bd30/54392721285.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_off0000805f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805F 5272 bytes
SHA-256: 75a1386f06284b6bb9784ce26629d87b425a0ea1ec54e1f76a337141b70441f9
font_01_sfnt_off0000925e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925E 10084 bytes
SHA-256: 459a0584be1bfa8519d7532d5c15bc298bdb466a7b4b516c7c4b241ce6b06d06

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