Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9b397706804589…

MALICIOUS

PDF

47.6 KB Created: 2020-10-08 09:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dfe8dfb6d9ad9b6593d109ed5d55a973 SHA-1: c94d7e51f174a1c7de18b3ede85027cb342fe9ae SHA-256: 7e9b39770680458920ca57e73ca31f565fdb8707383a6ceaaaaf075e71da89a0
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://cctraff.ru/pify?keyword=virgen+de+fatima+tattoo In PDF document text
    • https://site-1039814.mozfiles.com/files/1039814/6421318318.pdfIn PDF document text
    • https://site-1036716.mozfiles.com/files/1036716/vejuvefovaxenisologerew.pdfIn PDF document text
    • http://xovujejo.kindmindcenter.com/uploads/1/3/1/4/131453177/samonakuxu.pdfIn PDF document text
    • http://files.valeriesphotography.com/uploads/1/3/0/9/130969332/mivanomonorafiz_puximijuna.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/1/0483/4630/0576/files/xopatonozaloritabuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3771/6391/files/zilasulurat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8846/5051/files/carrier_air_filters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/320a983a-4120-46e3-8011-a8596bbeff70/56806888773.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8db948a7-1ba3-45c3-8419-cfbfa2624198/59822785377.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e5167c-c578-486e-913b-05e3af903753/kiniler.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_off00005834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5834 4984 bytes
SHA-256: 4c2474d48e6c87fc71682d65029ea46fd887cf286903e39cc27673e350e6a8da
font_01_sfnt_off00006913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6913 6400 bytes
SHA-256: 664617e831422c10f53faaa44c7ed210b490d41d7af6a232920e2c3ca2fb70d1
font_02_sfnt_off00007fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEA 15816 bytes
SHA-256: d4ec8cf90da7fc51a2d17083b91c37c4cd36e5a64d8c4b40c69b85983c8609b3