Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1472d7929ee7e9…

MALICIOUS

PDF

71.1 KB Created: 2021-02-23 15:52:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 39e56291f90a69358a2c0ecc470bc77f SHA-1: 001baa1ed227c82e8db84097ca5900818e8fab95 SHA-256: 0b1472d7929ee7e9455fd52ac3c3328843e801f787632518d73e0789b0d929ad
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=stats+modeling+the+world+answer+key+pdf PDF link annotation
    • https://xikisujegowo.weebly.com/uploads/1/3/1/8/131856166/zosutajarumepafunuk.pdfIn PDF document text
    • https://cdn.sqhk.co/jutusaxibu/4fEIikY/26087462891.pdfIn PDF document text
    • https://cdn.sqhk.co/kikutajaz/icU4Nig/niludidukifazemulawe.pdfIn PDF document text
    • https://didokizobu.weebly.com/uploads/1/3/4/7/134711826/4359054.pdfIn PDF document text
    • https://povuwifapijolak.weebly.com/uploads/1/3/4/2/134265363/7a9725620341790.pdfIn PDF document text
    • https://cdn.sqhk.co/butixasa/gojjeiU/simple_business_impact_analysis_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/tatakakuwito/himWghx/80862004750.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/AVfiahb/grand_alliance_order_book.pdfIn PDF document text
    • https://zuxidonav.weebly.com/uploads/1/3/4/8/134867872/gepazet.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/0AOhbgj/talking_flowers_names_and_pictures.pdfIn PDF document text
    • https://kasureketox.weebly.com/uploads/1/3/4/8/134856927/2567005.pdfIn PDF document text
    • https://pomisefinare.weebly.com/uploads/1/3/4/9/134902228/rotasazapala_towojujubilud_semidibomigala_lurupa.pdfIn PDF document text
    • https://cdn.sqhk.co/duzoxibuf/pja9Hja/x_runner_march_2020.pdfIn PDF document text
    • https://wetenonuvodipu.weebly.com/uploads/1/3/5/3/135321676/kofisak.pdfIn PDF document text
    • https://biziremidawa.weebly.com/uploads/1/3/5/3/135397591/fulokip_fugojamumor_tixajiwezav_turadezuj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gezexibubaju.rf.gd/clash_royale_apk_apkpure.pdfIn PDF document text
    • http://diwevobu.rf.gd/sonokokizarelonizow.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/dabozorepomidolibobofawi.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_off0000d7f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F9 5816 bytes
SHA-256: 189606a368a5ac0f3ba49e405ffc290093cda0efcb9f5ccda7441f49ee9a5ccd
font_01_sfnt_off0000ebad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAD 10324 bytes
SHA-256: 7e1a58b8622ea06ded13ecd6abb1f6c63587f93b4a8100c2ae95a40b281e9312