Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d7f0ee664764df8…

MALICIOUS

PDF

71.1 KB Created: 2021-03-02 18:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0cf8d91ab80243dc94c05c5f6b2e9c8b SHA-1: c9780cb4c33bad231ef27f4b653805758f444fe0 SHA-256: 4d7f0ee664764df8ba0f094a73c63adf855984dfd213228d735122a01825a333
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://gimoguvi.ru/wix?keyword=biome+world+map+coloring+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392853/normal_6037503dc2d0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486213/normal_603e41a262d2f.pdfIn PDF document text
    • https://jitebemaduk.weebly.com/uploads/1/3/4/6/134692965/pevubukomuzifar_xafarar_pefufuw_zimelovoravum.pdfIn PDF document text
    • http://manuximaxemeje.scienceontheweb.net/how_do_you_say_mandalorian_in_spanish.pdfIn PDF document text
    • http://probkin34.xyz/apple_tv_3eme_generation_app_storeh57ql.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425487/normal_5fe3c70640516.pdfIn PDF document text
    • http://tizezs.xyz/fijozojamazomvxxl.pdfIn PDF document text
    • https://milixugaxezo.weebly.com/uploads/1/3/1/8/131856079/7a3e49ab5.pdfIn PDF document text
    • https://jezelide.weebly.com/uploads/1/3/0/8/130874318/683966.pdfIn PDF document text
    • https://vavuvulo.weebly.com/uploads/1/3/2/8/132814906/942030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448727/normal_603ab068c6e4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374976/normal_5fc90d179675a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467945/normal_6038750c847a4.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://s3.amazonaws.com/wumodukubaru/bleacher_report_week_4_nfl_score_predictions.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/enough_and_too_grammar_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/nutrition_6th_edition.pdfIn PDF document text
    • http://xakagigoneliv.myartsonline.com/42796160151.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_off0000cc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC3D 5480 bytes
SHA-256: a17fc5a13bd1669344abbd6827c789302ba412060c5550267c1e6d2b3ed17e98
font_01_sfnt_off0000deb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB7 10100 bytes
SHA-256: 6643be8b9b14f02b5d9bb184d9d3dfc39fd1bdef173f2c47e0a34af5a2269eae
font_02_sfnt_off00010142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10142 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3