Malicious PDF — malware analysis report

Static analysis result for SHA-256 9adee4e22cba7039…

MALICIOUS

PDF

43.7 KB Created: 2020-10-06 21:13:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 487a5a183c771e0b006ca43ef4a86f5b SHA-1: aec833b077087479b86b9dc9911c502a367f352a SHA-256: 9adee4e22cba7039ddf6da27038f39ecd85d649edbe9ea6df39544719b18f2f5
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=netgear+wifi+extender+ex3700+user+manual In PDF document text
    • https://site-1038431.mozfiles.com/files/1038431/kuwuruzubitadovijada.pdfIn PDF document text
    • https://site-1043037.mozfiles.com/files/1043037/54590683357.pdfIn PDF document text
    • https://site-1040990.mozfiles.com/files/1040990/kuwufafixaxelobuwidujina.pdfIn PDF document text
    • https://site-1037860.mozfiles.com/files/1037860/43976097134.pdfIn PDF document text
    • https://site-1036730.mozfiles.com/files/1036730/jobosewe.pdfIn PDF document text
    • http://baxijiruv.n4py.com/uploads/1/3/2/6/132695540/pevisavidepo.pdfIn PDF document text
    • http://lepamipo.theutsflowerbarn.com/uploads/1/3/1/4/131437940/2096531.pdfIn PDF document text
    • http://files.pilatesbyalison.com/uploads/1/3/1/4/131437680/6824837.pdfIn PDF document text
    • http://metideb.ontrackbk.com/uploads/1/3/0/7/130739663/6557309.pdfIn PDF document text
    • http://futot.spacefab.us/uploads/1/3/1/4/131454683/6102912.pdfIn PDF document text
    • http://sidakom.fabriceblee.com/uploads/1/3/0/8/130874050/4456320.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/1/0476/5463/3638/files/te_doy_gloria_en_ingles_lyrics.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_off00006b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B86 5740 bytes
SHA-256: 6597445dc7e5c20b27858387df61257f50a04d144ad42df47c5ec3d7188c32a2
font_01_sfnt_off00007f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F22 10100 bytes
SHA-256: 824f2dcbbf215d42ef0992e9542cf56bc14ce9a39b979704c91a97a54fb82f46