Malicious PDF — malware analysis report

Static analysis result for SHA-256 e094c6f3783c29e7…

MALICIOUS

PDF

41.4 KB Created: 2020-11-09 14:36:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: aff043c1f85aec9d109510b75e4884cb SHA-1: 5b3591804500b1061460242a68c3b6ea6dd92c5e SHA-256: e094c6f3783c29e7ff0a58fb9faf24c83905da503f3d9da3ee0bdb9de5a64272
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://trafffe.ru/aws?keyword=airbnb+nashville+georgia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385848/normal_5f9182c2198cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415544/normal_5fa59ebc2176c.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/e1546287-7f98-4d52-b865-24d5b63993f1/39899537662.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b63d1c4f-4c0a-450d-8c98-367ee2df74cf/57624704848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92c0108c-14b5-42c1-b8ac-7eb8002b2f61/fortnite_mod_apk_unlimited_v_bucks.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/representational_theory_of_mind.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4036050b-f32e-4532-875a-3fadb4f46f13/18626270949.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/53049527901.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/068a9c76-cfdc-472f-a191-e6d76199eae0/zaloz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b24ff89-f102-416e-8062-5ce2c64a2423/84846158564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ad44925-2142-404b-89e1-561a98cb8604/18546726240.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/8796066658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8cf3de7-7e22-451e-90bf-c4e900649464/elite_pressure_cooker_manual.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_off00006454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6454 5136 bytes
SHA-256: ca2d2b87bfdd8d4675b09ba254e66ae5fd43fb64bf3f19570460375a0e89f89f
font_01_sfnt_off000075d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D2 9772 bytes
SHA-256: d96264dfb2f1a3033ee657cd155e332f70ab4ee12e7f4704a403c9cfe06cfe9b