Malicious PDF — malware analysis report

Static analysis result for SHA-256 edb14a4af4942a3e…

MALICIOUS

PDF

43.4 KB Created: 2020-11-09 10:43:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: f81beb04fb8244d20f0c83dd23036002 SHA-1: f6d34a50fdca142fc0493c011f62834f817a2133 SHA-256: edb14a4af4942a3ec33ee6d51442ea6d43d12ba3a6e5f553cc2da1b8af767931
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=earth+genasi+dnd+5e In PDF document text
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/2378189.pdfIn PDF document text
    • https://segedexulitino.weebly.com/uploads/1/3/4/6/134612069/7601439.pdfIn PDF document text
    • https://repenakexo.weebly.com/uploads/1/3/4/6/134600143/9245367.pdfIn PDF document text
    • https://mivezariwib.weebly.com/uploads/1/3/4/5/134582287/letirufimutaxirezo.pdfIn PDF document text
    • https://xulajaxosu.weebly.com/uploads/1/3/4/3/134366267/6118974.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/3baaeb0456f.pdfIn PDF document text
    • https://poxuxeket.weebly.com/uploads/1/3/3/9/133997588/javemosut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460709/normal_5fa3735516979.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://wiludilake.files.wordpress.com/2020/11/steelseries_arctis_7_pubg_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/dragon_ball_z_episode_246.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6035 4816 bytes
SHA-256: 8ad7ddcbea4dcb8ff71d06a80db570aa347d991f8d82e478020f5228ffe40d2d
font_01_sfnt_off00007086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7086 10184 bytes
SHA-256: 3e824174fe0b5e39866ba0c8938eec9b2e8b332f63c863641ac2e68060a01c16
font_02_sfnt_off0000934e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x934E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f