Malicious PDF — malware analysis report

Static analysis result for SHA-256 90fd2a33ce5c3075…

MALICIOUS

PDF

67.4 KB Created: 2021-03-05 00:09:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b7a5d16a97367ca32e767459efbd5dd2 SHA-1: 073a5b62667801cdd0ad081869a8f62ed0c408ab SHA-256: 90fd2a33ce5c3075d409f7add2d88a1676daae70f705582f6e173d6e3023099b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://botokaw.ru/wix?keyword=jet+12+inch+band+saw+manual PDF link annotation
    • https://sebanibukuj.weebly.com/uploads/1/3/4/3/134354661/230155.pdfIn PDF document text
    • https://cdn.sqhk.co/gogamosujimi/JER9aic/ziresekijarivove.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/what_are_the_5_key_environmental_indicators.pdfIn PDF document text
    • https://dubanivexog.weebly.com/uploads/1/3/4/3/134331992/doxok.pdfIn PDF document text
    • http://xasumemazekejo.scienceontheweb.net/what_is_lean_six_sigma_black_belt_course.pdfIn PDF document text
    • https://cdn.sqhk.co/tavanaru/iC6zRAd/4253124012.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/gHfjfjL/9208890726.pdfIn PDF document text
    • https://jupurelapuloful.weebly.com/uploads/1/3/3/9/133997255/e953a7.pdfIn PDF document text
    • https://jirafaribov.weebly.com/uploads/1/3/4/5/134599686/lovatojuwemuxiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447631/normal_5fc8159dcefd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501962/normal_604155aea7c3f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480878/normal_5febc23ef35cf.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/eghqjge/2838879467.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/sajezife/jalikubo.pdfIn PDF document text
    • http://wokofidikud.epizy.com/music_sheet_paper_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/pet_sematary_original_ending.pdfIn PDF document text
    • https://s3.amazonaws.com/kimone/udemy_android_app_development_for_beginners.pdfIn PDF document text
    • http://xenexafa.myartsonline.com/wazokebafoxabanixa.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/cgegis_table_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/55749415772.pdfIn PDF document text
    • http://wokesoz.epizy.com/kexurovibas.pdfIn PDF document text
    • http://lofunadex.myartsonline.com/rifamogifovimabexetumi.pdfIn PDF document text
    • http://fegizopanawu.epizy.com/zusoxeraxefavusovuwosobaw.pdfIn PDF document text
    • http://taxowojo.epizy.com/21846000443.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_off0000cc98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC98 5488 bytes
SHA-256: fe6674e74c0825debb9b43e76ea6285513f63fb9bd6a073361af8c4293ac3d7a
font_01_sfnt_off0000df31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF31 9624 bytes
SHA-256: cd3f20939215dfffc2e8217d48c3828fe448befd967b357b1bdd7342d15e1707

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