Malicious PDF — malware analysis report

Static analysis result for SHA-256 7859b72608750af4…

MALICIOUS

PDF

60.6 KB Created: 2020-11-06 01:51:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: bd9a1fc8dd3d07d81159d3d615f322dd SHA-1: b206bf03aba9a0ae3c7d68c893abd1c0e048b210 SHA-256: 7859b72608750af4d9e3131d3e33356678222c6f717a4f08f87df725cd5a94e3
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafffi.ru/123?keyword=magic+tub+and+tile+refinishing+kit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453333/normal_5fa487c5b8959.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368951/normal_5f8d5b32e61fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5f8f8fd9bb608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379613/normal_5f8b15f0be46b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380076/normal_5f8ed3197a8b4.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/1b4279c3-6c26-42f0-bdae-98bb73ce58ce/46426265886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce2dfde-cd46-4009-885b-6cc31587ff20/mr_and_mrs_adelman_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80d096be-ff74-47b2-b1b0-3c1be8fa57d3/23583379874.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f83495d6-ec33-4872-991c-a7101bb429c7/sling_app_download_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/705bd9f4-6f26-4943-8679-027896a4fb3c/body_beast_workout_equipment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7336851-f927-4857-91f6-dc4609b9db0d/871239593.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/mozojazega.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/blood_meridian_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0937772f-208b-4bba-ac8e-d9258171dcdb/57030147396.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_off00009f9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9B 5264 bytes
SHA-256: c09b1cda842606d1804c6e6997d4f1b7abc86d31867c62e1a7be7cde28cc8bfd
font_01_sfnt_off0000b16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB16F 11308 bytes
SHA-256: ef8d2b3fbaacca54c246eaadea7f5e12c4d03793da4631967449f0b875ca7e4e
font_02_sfnt_off0000d77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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