Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab14ba04601c8d3…

MALICIOUS

PDF

67.9 KB Created: 2021-02-21 17:08:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0d2d2678a5c8823a5784545dd81a8c7b SHA-1: e2035585d866078c3c965621316f1cdd52bf7504 SHA-256: 7ab14ba04601c8d3db98358269d701c317eaf9d4ca71173284ce2051ee8f608b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=how+to+draw+modern+florals+pdf PDF link annotation
    • https://cdn.sqhk.co/zapiseniw/ahfFlgi/at_t_tv_app.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/c9jiihN/snake_eyes_1998_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/winelolibug/YjcqM8F/39045876600.pdfIn PDF document text
    • https://cdn.sqhk.co/zetuzire/7qnsjg1/39989741071.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418370/normal_6020a728085c6.pdfIn PDF document text
    • https://cdn.sqhk.co/waxigapo/eSQibkm/59807554082.pdfIn PDF document text
    • https://tewamuwomipatus.weebly.com/uploads/1/3/0/9/130969874/713233.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/hejfmjf/airtel_new_sim_first_recharge_offer.pdfIn PDF document text
    • https://dofigova.weebly.com/uploads/1/3/0/8/130813881/7353488.pdfIn PDF document text
    • https://cdn.sqhk.co/fiziroluj/J2jijbe/asset_management_books_for_beginners.pdfIn PDF document text
    • https://pufabakorulur.weebly.com/uploads/1/3/4/3/134320636/jipulabikifi-sesepolekumit-wobuxuro.pdfIn PDF document text
    • https://cdn.sqhk.co/rinilafexowi/ichjghc/pifekave.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480594/normal_6020720dc1754.pdfIn PDF document text
    • https://jazelisis.weebly.com/uploads/1/3/4/8/134870131/cdb0cbc.pdfIn PDF document text
    • https://resawipodejevi.weebly.com/uploads/1/3/0/8/130814711/5621581.pdfIn PDF document text
    • https://cdn.sqhk.co/sowojusawepu/0ggjBYz/xagapuxoluwowufi.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/tokatefozude/ielts_writing_sample_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/janizakuzeven.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/mcgraw_hill_financial_accounting_chapter_5_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/soya_bean_production_guidelines.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_off0000cc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC76 5240 bytes
SHA-256: cba26a1d268de8edf662bf042673a2f04c04f65263c3c3312b4ec7ad0e7102dc
font_01_sfnt_off0000de43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE43 10636 bytes
SHA-256: b84f7bdbee9599d416fc3530269f684ca7a05c200ec29fce9d81598eab1e0875

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