Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6fcc1a76c98c0c4…

MALICIOUS

PDF

75.7 KB Created: 2021-02-25 08:07:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 94a4212bc4e8c1ac801fb91850fc9672 SHA-1: a0a44dd4688eaabac27063bd00a766e4c319d597 SHA-256: c6fcc1a76c98c0c4aa5448ad805f6dee84c66b52f7256bddca6566ac88b0d9d2
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://maypoin.ru/wix?keyword=wii+setup+instructions PDF link annotation
    • http://rocketdocs.us/letter_to_editor_template77miw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403806/normal_5fc5d80b14361.pdfIn PDF document text
    • http://robugipunebib.mygamesonline.org/how_to_adjust_singer_4411_sewing_machine.pdfIn PDF document text
    • https://cdn.sqhk.co/wajewukudino/hhh1Ltq/lenavobilipab.pdfIn PDF document text
    • http://brosbass.com/55059593349ml2fk.pdfIn PDF document text
    • https://cdn.sqhk.co/xevaxerit/GiihiHO/banco_do_brasil_pj_gerenciador_financeiro.pdfIn PDF document text
    • https://cdn.sqhk.co/liwewajawab/hgjjeOX/3346890412.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_601b693e27d02.pdfIn PDF document text
    • http://yourdesk.website/james_baldwin_famous_poemszhw8j.pdfIn PDF document text
    • http://mxbur.fun/puvagokawaturiko9mfum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417827/normal_5ff8b78398428.pdfIn PDF document text
    • http://barashik.space/90243720719xm5hh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_6010fbc5ca47d.pdfIn PDF document text
    • https://cdn.sqhk.co/tubawonidas/jijaMCT/60636119607.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422909/normal_6006124bbeec0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366017/normal_5ffd768aa6459.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wonanikapudidak.atwebpages.com/is_twilight_breaking_dawn_part_3_coming.pdfIn PDF document text
    • http://litorow.myartsonline.com/visual_studio_ultimate_2013_product_key_msdn.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_off0000ee93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE93 4700 bytes
SHA-256: 44dabdd17c72ed357991c518401aa8011532a0a2597d170110dea12d06057f97
font_01_sfnt_off0000feb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB1 10364 bytes
SHA-256: 7fa592da35ada23e35b02fa768ed1a1f849bdb06e23464d89245f00bc15d10c5