Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d49e426a696bb6c…

MALICIOUS

PDF

45.1 KB Created: 2020-10-08 01:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 333f263e992688eea396d7f85e0c7ab9 SHA-1: 3b8c9cfa6a7e5b9a340d0095d4ec63133a6064f3 SHA-256: 1d49e426a696bb6c75645f312706897452bb5514c6e4151258ed8bfcc3511d27
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://gettraff.ru/pify?keyword=small+estate+affidavit+marion+county+florida In PDF document text
    • https://site-1038890.mozfiles.com/files/1038890/mevodorurewuwejefo.pdfIn PDF document text
    • https://site-1036698.mozfiles.com/files/1036698/tenapub.pdfIn PDF document text
    • https://site-1037135.mozfiles.com/files/1037135/gavejepewesu.pdfIn PDF document text
    • https://site-1037169.mozfiles.com/files/1037169/lujofape.pdfIn PDF document text
    • https://site-1040528.mozfiles.com/files/1040528/89657711490.pdfIn PDF document text
    • http://files.kruoutdoors.com/uploads/1/3/0/8/130813934/nopigatufonaniw-zirekatupelo-nuzelitane.pdfIn PDF document text
    • https://site-1039494.mozfiles.com/files/1039494/63850062395.pdfIn PDF document text
    • https://site-1039346.mozfiles.com/files/1039346/fexilidoxokitofoxumowawil.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/1/0437/3633/4488/files/jax_vs_camille.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6285/1749/files/touch_of_eco_suntrap_pro_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9917/1230/files/54260193281.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_off00007360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7360 5432 bytes
SHA-256: 5268f2b1ea26a3d0a025858b1f2f49ea232a1a23ec6ee30418f49648759d6790
font_01_sfnt_off000085ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CE 9816 bytes
SHA-256: 5936d8fd72850b980888a252201cc9a9b511b3099e6e4ed4002377279b0b65fa

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