Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22ab544747fcc4a…

MALICIOUS

PDF

34.9 KB Created: 2020-11-05 19:06:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: fbe31bd1882545dfe7dcc2b64f90d370 SHA-1: 1d56db0f1bb737b09fa12f51b8dfb4803af34c39 SHA-256: f22ab544747fcc4a649bae1a3e277a2555cda2dafca3058e63622e170478710c
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://trafficel.ru/123?keyword=ikanzi+x9+user+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366341/normal_5f8c93dfdfd25.pdfIn PDF document text
    • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/8339796.pdfIn PDF document text
    • https://gugabezari.weebly.com/uploads/1/3/4/5/134577353/tonomovibuwap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f886099358d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/tropane_alkaloids.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/94910365387.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f31dcdf8-2f70-41f1-8df1-4121bf7ad955/manual_for_sandisk_mp3_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4c35e7b-0d69-43cc-87f7-37222a8cb450/30577419305.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2fdcfac-e888-4d12-bdf3-a05988385f30/beauty_and_the_beast_violin_sheet_mu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0323a39-eaf8-49e0-a744-758f1424c95f/rockies_season_tickets_2019_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/lavuduxugimibabadapefir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/508cb809-8ce7-4c91-a744-2a35602d2ff1/23478699670.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e071e3cc-3183-4f9c-9f68-ccce8ed3d4ba/12956884770.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_off00004b5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B5F 5104 bytes
SHA-256: 71cad81f8e39979c9f93587c2c868255553781c4aa76c1dd3646dc56cf516a4f
font_01_sfnt_off00005cb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB9 10020 bytes
SHA-256: b8eb705b2c13e8d99de0626a430bd9150fdd9efe5c187a8f322d31b712a515d1