Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad129afb12181ca…

MALICIOUS

PDF

40.1 KB Created: 2020-10-30 08:02:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 04974bfac410a1eeb0e60def04da0aca SHA-1: e00a0519eb564c5aac5acaf3f3997c0ed118e33f SHA-256: 8ad129afb12181cad21d18a50b58cb6425613920d337bdd93af1bf840f5870af
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=i+do+not+consent+shirt In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376874/normal_5f8ba85547066.pdfIn PDF document text
    • https://kejedavozeve.weebly.com/uploads/1/3/1/4/131483662/dinupix_zuratomabitag_joveronedadabek.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/78abb415-971e-4500-94a4-474453910d7f/logitech_g29_wird_nicht_erkannt_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1521/1672/files/full_metal_jacket_opening_speech_script.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab468ae2-5e5f-43cc-99c0-e8a4a9732ee2/pofaponufemeripazobaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8196/6779/files/totubukogidox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/chapter_13_chemistry_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4baaa9e-73d7-4751-99eb-e3dc331a65d9/61074878266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1838/7107/files/bofekupunatu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01b66e65-4f22-49fd-be59-00783bad3d2d/map_skills_nwea_student_login.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e042865-0529-4b0c-acc5-c25be00478e6/zagoxob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4040074a-c305-42c9-ad20-2fa321879749/wujijuwapenozijaxul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b973c0e0-7f94-470e-92a4-cd41c34d15ab/bagumiri.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_off0000623c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623C 4720 bytes
SHA-256: d35b18dd56e6da50d0186fca567f60c199ed60ba66c8f54cc7bc5db09acec213
font_01_sfnt_off00007241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 9960 bytes
SHA-256: 7acd9377d458d6598ab002fe61b6f050770c0ce7c729356d4d8ef8cbfc7957c3