Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade398b20e114684…

MALICIOUS

PDF

43.8 KB Created: 2020-10-02 01:01:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c0c841dd830e427ff656480343a55843 SHA-1: 7d127275bb1f3bb4ac1e19ec512617a7cc703815 SHA-256: ade398b20e114684544513e6a4407ef50407fa2aeb8c595b11d77579b3c3ea57
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/strik?keyword=download+manga+pdf In PDF document text
    • https://site-1036973.mozfiles.com/files/1036973/tujipuri.pdfIn PDF document text
    • https://site-1036679.mozfiles.com/files/1036679/66203699339.pdfIn PDF document text
    • https://site-1039610.mozfiles.com/files/1039610/teletekesizij.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/wolemodiwum.pdfIn PDF document text
    • https://site-1038868.mozfiles.com/files/1038868/65477721351.pdfIn PDF document text
    • http://xodaseg.alextoenniges.com/uploads/1/3/1/4/131410939/1496784.pdfIn PDF document text
    • http://files.promise4pawsdogrescue.com/uploads/1/3/2/3/132303370/3997423.pdfIn PDF document text
    • http://files.travelandfellowship.com/uploads/1/3/1/4/131410736/1165552.pdfIn PDF document text
    • http://files.gpwrestlestore.com/uploads/1/3/1/3/131398573/3140861.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/lukuregofevixutojopetaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4891/9191/files/82695088978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/2894/3526/files/mla_format_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5192/7720/files/15404456333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/rca_tablet_with_keyboard_case.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85192821-cb34-4c6f-9084-da0eff051763/pojomesazebujux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cdb1926-aeb5-4975-9db2-33426c55b007/77795472912.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB4 5180 bytes
SHA-256: e1b93b51adfb6f19c5753e9ec84328c694a26ac0bc2892c6ad9743d3d0ceabc2
font_01_sfnt_off00008061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8061 10064 bytes
SHA-256: 2c1ef4d6dea76539bcb306cd26cec8ae3ae300def011053ac354634aae7b312f

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