Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ce206db2a843669…

MALICIOUS

PDF

40.8 KB Created: 2020-11-09 12:36:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 295ae1009848fd39aaf0745d63efc703 SHA-1: 0b10d2dc18e51a75b3b8a5b8ff87e36dedbaba3a SHA-256: 8ce206db2a8436694fb53b92d1d03ba37eb90902c5ab95361d4498c9e9d09f2f
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://gettraff.ru/123?keyword=lucas+s.+the+art+of+public+speaking+pdf In PDF document text
    • https://sazadasixitabe.weebly.com/uploads/1/3/4/4/134404720/20c2259b8425e48.pdfIn PDF document text
    • https://dojeviwenos.weebly.com/uploads/1/3/4/4/134491393/ca8e04e04e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374957/normal_5f8a441dce890.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/vidibedababo_lonenimo_kejuv_jibegosesiz.pdfIn PDF document text
    • https://toxekemugig.weebly.com/uploads/1/3/4/4/134484635/526338.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407571/normal_5fa11e193bddf.pdfIn PDF document text
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/9876145.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420438/normal_5fa0856f1ab6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383308/normal_5f97947ea2e33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368998/normal_5f88fb739962e.pdfIn PDF document text
    • https://retixuzekuzexaw.weebly.com/uploads/1/3/4/3/134375726/37d7d7d9.pdfIn PDF document text
    • https://fumunagik.weebly.com/uploads/1/3/4/5/134520136/752509.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/060ebd7c-679e-44d7-9e3e-54d2b6d2015a/67443843569.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/kozilogebuzupixizigepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27b77270-2964-444d-9d38-e1283f4b000c/wezesifupu.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/gisax.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_off00005e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E50 5592 bytes
SHA-256: 535aa16810db837007e279e9d2fd5001daab8b751fa5a094dd4b0444f53758f2
font_01_sfnt_off0000714d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714D 10792 bytes
SHA-256: 24f4ad530628eb8fcb7e29ca7eab1eb7de3d796f7efc2e879f5d9037b3566cd4

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