Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c0b193877ee261…

MALICIOUS

PDF

43.2 KB Created: 2020-11-07 06:35:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: a093798aa3dce60c859d33f1ce31ff99 SHA-1: cd828aaaad6ebad865b330e183c75c8270d34341 SHA-256: e5c0b193877ee26101837891fcb8a21aff4c44bd79f8ccccf8f90bf3bd4f9109
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://traffine.ru/123?keyword=daytona+500+2020+live+streaming In PDF document text
    • https://fofaxofik.weebly.com/uploads/1/3/4/5/134521529/e035e0f70decb.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/d6f9460d9e.pdfIn PDF document text
    • https://lurabesuweki.weebly.com/uploads/1/3/4/5/134524451/5448676.pdfIn PDF document text
    • https://digafixi.weebly.com/uploads/1/3/0/7/130776371/a0d7209b96ca.pdfIn PDF document text
    • https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/8588519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366622/normal_5f963bb210e23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/afb03a65-1a99-497c-9cd6-b0aa59729949/prentice_hall_life_science_7th_grade_textbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89291c21-6709-4027-983f-5c2634422f07/98601539373.pdfIn PDF document text
    • https://tovijid.files.wordpress.com/2020/11/sepitozabobowesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69fb95bc-210b-43fd-8d3d-f33506009348/12225799027.pdfIn PDF document text
    • https://zegasaxum.files.wordpress.com/2020/11/gerumiwaj.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/28462637602.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88d01658-4b74-4c4c-8100-8702bf0b871d/bamozabutatosinag.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_off000068ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AD 5564 bytes
SHA-256: 51b1918e4161481bcb22b6246aa9064a66ae1dcb7ab9658fc80502a032d5c93b
font_01_sfnt_off00007ba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA0 10656 bytes
SHA-256: 31c1623844ddde46f2f26ffa5b10233a06e61cf392e0929271dfab1768a04cef