Malicious PDF — malware analysis report

Static analysis result for SHA-256 e023ca96a26ecb57…

MALICIOUS

PDF

79.4 KB Created: 2021-04-01 16:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c016e2ff04cfdd6bb4d837065165e94b SHA-1: 10495e676d7f7952c7fe0f792b9432fc8c75489e SHA-256: e023ca96a26ecb57211b444f0a0f86756eaf364e9900f69a6ebacb6f81c4265c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/strik?utm_term=the+night+manager+season+1+episode+2+recap PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390680/normal_604703cee3ef3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491445/normal_600ecfc098205.pdfIn PDF document text
    • https://cdn.sqhk.co/repejuvovod/jagigc0/oscar_fish_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393369/normal_6008969b1ab45.pdfIn PDF document text
    • https://cdn.sqhk.co/jogeguzotire/AjbXWgj/download_tower_fortress_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/8shgsgd/dixupunuxirowarofiloso.pdfIn PDF document text
    • https://cdn.sqhk.co/nivavepe/hg8heje/83074626310.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491688/normal_6001f09974d59.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rinafuladimuk.epizy.com/amadis_de_gaula_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/plantronics_voyager_legend_bluetooth_headset_hard_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/11933880407.pdfIn PDF document text
    • http://xijevilofut.rf.gd/sewing_techniques_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/92183275629.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/imo_video_call_record.pdfIn PDF document text
    • http://nerepigov.rf.gd/appointment_scheduler_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/36087526581.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/best_buy_cordless_phones_for_hearing_impaired.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/87300554451.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/65716402303.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/31730607551.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/brocade_fcip_admin_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/squirtle_shiny_form.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/cambiar_de_a_word_gratuito.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_off0000f7f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F5 5588 bytes
SHA-256: 53d88633b4d79e1d00845bcef6774c51c6c2201c2f6e83f156006efa7a418c3c
font_01_sfnt_off00010ad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD3 10900 bytes
SHA-256: 2424f9f1bb7f009097335d118a842636f69dcaa26ff560977daf0700112e32be

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