Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0fa95afa036e00…

MALICIOUS

PDF

68.7 KB Created: 2021-02-19 00:47:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 100f3d3cbb5ad56825fe8ec4905239b7 SHA-1: 06f776e7da435734d3ba78420cc8e8a583d766d4 SHA-256: fa0fa95afa036e004cb9535a33e7bac5ab4b3aacb46c6d696508eca9b22576e2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jacksth.ru/wix?keyword=william+walker+atkinson+pdf+books PDF link annotation
    • http://ufenmac.com/laxaxosevalazoxegakegukoie16.pdfIn PDF document text
    • http://rentline.pro/gaxuray5y2a.pdfIn PDF document text
    • http://baby-slings.ru/como_hacer_una_hoja_de_vida_exitosa_2020js5yy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501046/normal_602ee43a87a48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466151/normal_5ff86dc4aedcc.pdfIn PDF document text
    • https://cdn.sqhk.co/nilamemiw/jaHMghl/11439767321.pdfIn PDF document text
    • http://9gusevshop.website/unwind_reading_guide_answers43vy8.pdfIn PDF document text
    • https://mifadumuvuvog.weebly.com/uploads/1/3/4/6/134689338/winopolulus-sobujotizefire-xozum-lazeletiwotukok.pdfIn PDF document text
    • https://xanavixigusom.weebly.com/uploads/1/3/1/4/131453194/c6bc9bc29e7e842.pdfIn PDF document text
    • http://yoganchik.space/lenekepiginakegipi34q3u.pdfIn PDF document text
    • https://jilarikogezinuv.weebly.com/uploads/1/3/0/9/130969280/lekeduvofusira.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458412/normal_5fed1ddc4eae0.pdfIn PDF document text
    • https://degevibuv.weebly.com/uploads/1/3/5/3/135316410/abd9ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388820/normal_5fd3bdfac5e09.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/divikufifir/63048464118.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_off0000d0ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0CE 5496 bytes
SHA-256: f050fb9d66eac85bbdab65f78420baa6edda1e69b26ed5b101340903218f753a
font_01_sfnt_off0000e37f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37F 10172 bytes
SHA-256: f382d7e440669223cde3e42715174c03762c5276026dbcf7c56ba2e04b574785