Malicious PDF — malware analysis report

Static analysis result for SHA-256 eadb0899d1d577c8…

MALICIOUS

PDF

40.9 KB Created: 2020-11-07 16:42:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d38a6619a378d25dbd189b3e4a23972b SHA-1: 4107c47215fd10c157c828aa736b9e26bfb55c5c SHA-256: eadb0899d1d577c83d5ccff4432a0f4c89aa3f6b6d83ccc9e5b36a8fe6ff399d
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://traffmen.ru/123?keyword=rwby+after+the+fall+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370303/normal_5f898051b9700.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382430/normal_5f8c2b2687fae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380413/normal_5f8be68376876.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://minixez.files.wordpress.com/2020/11/74589714801.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/6524845668.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aafcaca-c17d-4353-8d7c-7a77bad9163f/13967179601.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/baby_house_gecko_care.pdfIn PDF document text
    • https://vabavoresadi.files.wordpress.com/2020/11/debewasomogoro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e06ca80d-9f7b-4732-9adc-02250d181457/how_rich_is_angelina_jolie.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/rekakodevabujid.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/37466608927.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/2312_forest_circle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9b13506-4ab9-4b9c-8de8-200eb80148c1/34536704411.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/drill_guide_home_depot.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_off00006211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6211 5292 bytes
SHA-256: 06365e843406a55ccef2c77ad1eea2b48dbf1411231b4311cc409f34d9a8c98c
font_01_sfnt_off00007423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7423 10284 bytes
SHA-256: 712448012e8509ff1c55280415985265c0b64af071670df6619c26b79e592084