Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd0bf92b665cdac…

MALICIOUS

PDF

41.6 KB Created: 2020-10-12 11:58:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 032c03b2331e339e4f3d6b8421209997 SHA-1: a6301ef119ab59f439c123ac2b9b9fd7faf2e678 SHA-256: 3cd0bf92b665cdac0665331bcb17480a2716a09a43cd4d888b1433792c3e43b8
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://cctraff.ru/strik?keyword=windmills+of+your+mind+sting+pdf In PDF document text
    • http://fewolusa.brrs.net/uploads/1/3/1/4/131406082/3134da5393bc8.pdfIn PDF document text
    • https://site-1042450.mozfiles.com/files/1042450/rejezudixoruruzo.pdfIn PDF document text
    • https://site-1043130.mozfiles.com/files/1043130/5132516457.pdfIn PDF document text
    • https://site-1040249.mozfiles.com/files/1040249/putexudu.pdfIn PDF document text
    • https://site-1037237.mozfiles.com/files/1037237/neregokakulu.pdfIn PDF document text
    • https://site-1036750.mozfiles.com/files/1036750/74223575162.pdfIn PDF document text
    • https://site-1039811.mozfiles.com/files/1039811/fifesapepadoz.pdfIn PDF document text
    • https://site-1044518.mozfiles.com/files/1044518/talikazipesabageme.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/88ef98b2-51cc-4969-91f9-2c67af83382f/rurewezud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b165c437-4b04-4284-915a-f21f884d7c42/67780307231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/345620e2-7899-4a4c-ad27-c54b1ac2e3e5/visusogoneni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c35a128-b792-4fc0-afef-ecd2620e98b2/37777152495.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34c2208d-9932-4322-8e56-d6e5bad1cb5f/26918015226.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_off00006437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6437 5264 bytes
SHA-256: a6417f8c6d2adce22f66658eeb08d466afa4feb9e1c4b74cbe85cd924dd3d537
font_01_sfnt_off00007619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7619 10392 bytes
SHA-256: 06c8ab3f10cfe500ecbd62d63428c28427f0ddb4d9c73fd5a4e57a3944034ad5

Open this report in the interactive analyzer, or submit your own file for analysis.