Malicious PDF — malware analysis report

Static analysis result for SHA-256 0325cd18d8fbf93a…

MALICIOUS

PDF

39.9 KB Created: 2020-10-03 05:26:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d58ecdde70171b08ced21c06938312da SHA-1: db033de242c5e56b291d7855ae9ca6745faa4a5e SHA-256: 0325cd18d8fbf93ae6e03341bf32f292e91aeb74c8759e7cd0d710994a01051a
184 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.
  • 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://cctraff.ru/strik?keyword=meant+to+beh+full+movie In PDF document text
    • http://jixobetoj.evergreenmeditations.org/uploads/1/3/1/8/131856435/mirexobot.pdfIn PDF document text
    • http://files.rattlerbands.org/uploads/1/3/2/7/132710780/f6b3d6b5.pdfIn PDF document text
    • http://files.maritzavives.com/uploads/1/3/0/8/130874222/dotel_vavaroxagef_baxuwobebanexug.pdfIn PDF document text
    • http://buwaxun.liquidnitrogenphoto.com/uploads/1/3/2/7/132712336/3e6f135d76c7cd.pdfIn PDF document text
    • http://tobusubon.zestcuisinetoyou.com/uploads/1/3/1/8/131856222/cc7871102c4b9.pdfIn PDF document text
    • http://files.davidstaceyphoto.com/uploads/1/3/1/6/131606490/9681162.pdfIn PDF document text
    • https://site-1038856.mozfiles.com/files/1038856/kigodifoxonanosekopiwoxo.pdfIn PDF document text
    • https://site-1037188.mozfiles.com/files/1037188/84412004191.pdfIn PDF document text
    • https://site-1037081.mozfiles.com/files/1037081/numesitumugenojutemakiw.pdfIn PDF document text
    • https://site-1036640.mozfiles.com/files/1036640/36133154949.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2559/4530/files/defining_racism_can_we_talk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1615/files/dee_williams_laundry.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_off0000516b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x516B 4820 bytes
SHA-256: e75403ba9ffcd270cbafd4b1b31586204f227e7ef184bb19c2404426bcca51ac
font_01_sfnt_off000061b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B0 10184 bytes
SHA-256: f0b85d76763475cba5c811c3a90b40cd1367f9e7a8adcd37efe3059e31774934
font_02_sfnt_off000084ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34