Malicious PDF — malware analysis report

Static analysis result for SHA-256 9da3eb1a48b313e2…

MALICIOUS

PDF

38.7 KB Created: 2020-11-07 06:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 89d77a314b4a47e39d550d29f45d72be SHA-1: fc8a7655dcb39d238da6219b04b2e8d777f8ec9c SHA-256: 9da3eb1a48b313e24dd4872ecc8059dfca072c0370ad704738ba2e03af7d2448
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://traffking.ru/123?keyword=vocabulary+workshop+level+c+unit+4+answers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368788/normal_5f8b67e71dd8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380881/normal_5f9915e64f5ce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/rogawski_calculus_for_ap_2nd_edition.pdfIn PDF document text
    • https://pigavusa.files.wordpress.com/2020/11/28401750077.pdfIn PDF document text
    • https://fimalul.files.wordpress.com/2020/11/xenikefeg.pdfIn PDF document text
    • https://sufuvuse.files.wordpress.com/2020/11/3074016501.pdfIn PDF document text
    • https://rasofopob.files.wordpress.com/2020/11/paralalaxet.pdfIn PDF document text
    • https://vivuvegutofo.files.wordpress.com/2020/11/gobase.pdfIn PDF document text
    • https://zapawex.files.wordpress.com/2020/11/61786574799.pdfIn PDF document text
    • https://pozajifu.files.wordpress.com/2020/11/pdf_to_jpg_converter_freeware_software_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/unitarian_universalist_hymns.pdfIn PDF document text
    • https://balapep.files.wordpress.com/2020/11/phoenix_project_types_of_work.pdfIn PDF document text
    • https://ligesopalod.files.wordpress.com/2020/11/97165985243.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_off000056ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56AD 5532 bytes
SHA-256: a59e3f84097f950e3bae7b804b001334845d6d438e64d7dff355ca1f7d812b5f
font_01_sfnt_off00006999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6999 10968 bytes
SHA-256: 319390c4b3bd61bc81a927dc7488c64be54792878b26a1eeb7f56fda55363cb4

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