Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce727ebe23c59155…

MALICIOUS

PDF

42.3 KB Created: 2020-10-02 10:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2ffe7287a4ca42843a94c9a25376a845 SHA-1: 2a35e11c3eff91e53d16618613b2e56f50961598 SHA-256: ce727ebe23c59155eb2853645944dcf5dedf1a69d5b3ccc8c7c62cf703c83498
124 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ttraff.me/pify?keyword=kenmore+dishwasher+665+installation+guide In PDF document text
    • http://files.geirastadir-hestar.com/uploads/1/3/0/8/130874170/3578b3b.pdfIn PDF document text
    • http://xozaraser.clarityfromwithin.net/uploads/1/3/2/7/132740836/tobarofok.pdfIn PDF document text
    • http://files.caravanoflore.com/uploads/1/3/1/4/131406519/wuzozokuzefe-mapekesafu-lodadakamila-gafubamodaku.pdfIn PDF document text
    • https://site-1039801.mozfiles.com/files/1039801/tunuzekufenoxiru.pdfIn PDF document text
    • https://site-1040363.mozfiles.com/files/1040363/vologuzi.pdfIn PDF document text
    • https://site-1037057.mozfiles.com/files/1037057/sazomipafuvekolivez.pdfIn PDF document text
    • https://site-1036840.mozfiles.com/files/1036840/18893402739.pdfIn PDF document text
    • https://site-1036972.mozfiles.com/files/1036972/naguwirikanenubefidugev.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/1/0482/0428/4061/files/dowumirukubutuxefizirovof.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_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 5576 bytes
SHA-256: 7d3947c2b5e469fbd5409be270d5c0b0b43de680f114c68728624325cb5aa70c
font_01_sfnt_off000078d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D8 10440 bytes
SHA-256: 2fc81140e35fcf9392128036ad8823cd27c07d695a66ac80facddaa47787df25