Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0e2916fad9a5a5…

MALICIOUS

PDF

37.6 KB Created: 2020-10-02 18:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d9216cf63e73878530154a10221a859c SHA-1: 30987f4b681cad1be874fea91f34b0627c195db6 SHA-256: 2e0e2916fad9a5a57813e328c9628e1f180e6c5709581d04490d2a57382344dc
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://ttraff.club/pify?keyword=geometry+for+enjoyment+and+challenge+solutions+pdf In PDF document text
    • https://site-1037033.mozfiles.com/files/1037033/kotejenujixopotep.pdfIn PDF document text
    • https://site-1039493.mozfiles.com/files/1039493/40524202590.pdfIn PDF document text
    • https://site-1036884.mozfiles.com/files/1036884/72459203708.pdfIn PDF document text
    • http://files.nestspaskincare.com/uploads/1/3/1/4/131407214/nejaxuludipa.pdfIn PDF document text
    • http://mutixidol.thoughtprovokingmomentsblog.com/uploads/1/3/1/3/131383839/borane-koxefujubu.pdfIn PDF document text
    • http://tudidu.d-ark.info/uploads/1/3/0/9/130969744/4201164.pdfIn PDF document text
    • http://vugurino.spyratoschiropractic.com/uploads/1/3/0/7/130776322/rudexumexikeb.pdfIn PDF document text
    • http://pesil.jbkirklanddesign.com/uploads/1/3/0/7/130739693/1addb4a352be.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/1/0440/0247/6190/files/6046110599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1672620d-862b-4777-9ee2-0f4c5eadb5fd/labafenagulawex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3446ada2-a9f8-488b-b4b4-2f8f7907e3cf/fujos.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_off0000539c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x539C 5776 bytes
SHA-256: 05b84e76907e5ab754d98233fb930b1e781d536a53867f02868c19ed4066bda0
font_01_sfnt_off00006731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6731 10052 bytes
SHA-256: 689b67de5576bd637721f1212d0fcb218b0c1ecf8257211155ea6f3106a0463c