Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d55b8ba7e7b9c08…

MALICIOUS

PDF

64.6 KB Created: 2021-02-17 13:48:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f0d56584a7eacfb28ed537965c57bf55 SHA-1: 75946cbfc3ce2a830acf07eb6897ed0aab304757 SHA-256: 5d55b8ba7e7b9c08f67bef40bb7eaa246d835111679ca75a53363b08a23e2c87
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/123?utm_term=how+to+play+guitar+for+beginners+acoustic+easy+songs PDF link annotation
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/buladawomadosa_teneni_nofekofovetubaj.pdfIn PDF document text
    • https://paniselodo.weebly.com/uploads/1/3/5/9/135969975/totuti-vuxuv.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/j7jgUhi/the_marketplace_grill_cafe_downey_ca_90240.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470552/normal_5fdd7fa64bcea.pdfIn PDF document text
    • http://bossyonlinex.com/rezorahqyji.pdfIn PDF document text
    • https://mopotepawo.weebly.com/uploads/1/3/0/7/130738720/4918515.pdfIn PDF document text
    • https://jebasiju.weebly.com/uploads/1/3/1/3/131381450/2218063.pdfIn PDF document text
    • https://cdn.sqhk.co/bekutojeke/MjjbAgc/gatitikuzazedovuv.pdfIn PDF document text
    • https://ripukalogud.weebly.com/uploads/1/3/4/3/134391837/mifagasigigose-kebopebeminu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471234/normal_601752d158e62.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/jipowumat/responsive_bootstrap_ecommerce_template_free.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/bewidirupiloduxo.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/blender_3d_projects.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/cetosis_en_vacas.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/learning_styles_2012.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_off0000c000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC000 5476 bytes
SHA-256: 8379c2140f99d0f80c67c5bf084dd177f951a109ac9c71a1545b9261f9ea1ad2
font_01_sfnt_off0000d2cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2CF 10052 bytes
SHA-256: cf114cc3619f6ec140ca2c254f750c0ef452efbf553d0597d3c1afb7ec67d189