Malicious PDF — malware analysis report

Static analysis result for SHA-256 8feeee5d6cb5ea00…

MALICIOUS

PDF

50.6 KB Created: 2020-11-03 14:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 14e5c1b8896ee85a729fcd09a4033c42 SHA-1: 63ebbd1eba352ef12ac2f46417ef48c68ffdc508 SHA-256: 8feeee5d6cb5ea000434075db96d7ceaac9e42516f0f657d415d2aad0ac20e19
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.link/123?keyword=english+to+lebanese+translator In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f928dcb99eb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5f9d78cd6010c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/48100b11-6786-4a0c-aaf9-5c7d947adc38/74867202703.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/73329412857.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/kingdoms_of_amalur_reckoning_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/dabijilis.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/properties_of_matter_worksheet_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/cbse_class_10_syllabus_2018-_19.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/reservation_in_india_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/slang_for_drunk_and_high.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/donutoxisegizixipofan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e9a6844-f785-4c56-90cd-af49b755110d/dasodadagujeribumufeza.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/smaller_size_converter.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD4 4832 bytes
SHA-256: d5f29ebca9fac4fd914f78451fadb2b19f51153cd0909ada52525dc085d1f540
font_01_sfnt_off00008c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2F 10460 bytes
SHA-256: 2a1289d8a407bdb2e4ab44b6427b9eabfca26937c0c8bd5561db36eaaa2c7032
font_02_sfnt_off0000afbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFBE 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2