Malicious PDF — malware analysis report

Static analysis result for SHA-256 6677524608e1fc9d…

MALICIOUS

PDF

72.5 KB Created: 2021-02-26 11:43:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 19cab6a088555a1c3e88c5de4d9116b8 SHA-1: 84ba4856e19c1a79d7faa5fd758db86b436f3cc2 SHA-256: 6677524608e1fc9d8388c818907a20f6d71c66325660bc2c079faf1ce95299e7
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://botokaw.ru/wix?keyword=hannibal+cooking+book+pdf PDF link annotation
    • http://stalekost.site/slideshow_css_template_freefj4mu.pdfIn PDF document text
    • https://bexejasofipa.weebly.com/uploads/1/3/1/3/131397997/1480802.pdfIn PDF document text
    • http://kadabafomelu.66ghz.com/contract_agreement_format_word.pdfIn PDF document text
    • https://turarizamagux.weebly.com/uploads/1/3/1/4/131453837/6ff81a57f4eca4.pdfIn PDF document text
    • http://timelessdecorum.com/project_manager_experience_letter_template3f75c.pdfIn PDF document text
    • http://lodujenoxo.iblogger.org/3-_2-_1_formative_assessment_template.pdfIn PDF document text
    • http://bebetadiruj.mywebcommunity.org/jaybird_x2_comply_tips.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/guzijuluxazojaxe.pdfIn PDF document text
    • http://sowopezamiw.medianewsonline.com/bruce_lee_book_tao_of_jeet_kune_do.pdfIn PDF document text
    • http://busevabafumoje.iblogger.org/8782357020.pdfIn PDF document text
    • http://roflan.site/mad_battle_royale_mod_apk_1._0._9qjq8s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gekomulo.rf.gd/adolf_galland_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/60800944098.pdfIn PDF document text
    • http://dekuravimej.epizy.com/munowo.pdfIn PDF document text
    • http://puxabilaxomim.rf.gd/35660470001.pdfIn PDF document text
    • http://vixoboguwexalo.rf.gd/vehicle_accident_report_format.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/how_to_connect_astro_a20_headset_to_pc.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_off0000df32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF32 5212 bytes
SHA-256: 1294eb0c3308628373434183df708831332cb73b3c2ba4e8625e6896713a329d
font_01_sfnt_off0000f101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF101 10568 bytes
SHA-256: fa0daf35bae97df1ba8c64e697fef018241bc6b0355b6d5bab06d3fc4d0cf40f