Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cffc1fafc82a717…

MALICIOUS

PDF

38.5 KB Created: 2020-11-03 07:26:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 70e503417e6eee1ab9cef9091458286f SHA-1: 78066ab42fff60c600b441010f002669d5a161c3 SHA-256: 6cffc1fafc82a7176eee63ec4d85d7b0c72932e775efff58de3d817b78ef54ac
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=renekton+guide+youtube In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366637/normal_5f8b2e80c198b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377403/normal_5f8ac69eb8382.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/9a973019-17eb-4e46-93fd-9ab1d031be8f/90836105146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82160b6e-f6ea-4a5c-a8e3-d7e226ba92a5/88701394020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8694/7513/files/shadow_health_comprehensive_assessment_exam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17018711-b0a7-4528-9a50-55acb19f5f01/60924485213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/2020_toyota_sequoia_platinum_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4257/6797/files/enlightenment_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34069da9-873c-4c7e-b874-e4db7956f5bd/89129206473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/1560/7716/files/brock_lesnar_make_a_wish_count.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f845e71e-13aa-4dbd-8e14-46071dae0e39/geworonazojikode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/0056/5407/files/2413401033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9081/9227/files/fl_blend_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2933/0603/files/dfo_spitfire_guide.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_off00004d2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2A 4672 bytes
SHA-256: dfdd6245bbbe60eb32eb28a4402623209ac78b004e39805593cfce854a688f7a
font_01_sfnt_off00005d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D33 10036 bytes
SHA-256: f78c9f701c0b5d743e0ed3f5817efb1a564fec9256a424c9dde635a8924e71b3
font_02_sfnt_off00007f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.