Malicious PDF — malware analysis report

Static analysis result for SHA-256 24d5735269b0d94d…

MALICIOUS

PDF

77.8 KB Created: 2021-04-25 20:30:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 465b31b8357e0c6f468122a829238bdb SHA-1: 160969e1a9cc336a93696258a670c5b98b4cc2d4 SHA-256: 24d5735269b0d94d752abde3e2904073cd6d27be0ea70f72c60fa890e43cdd05
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/strik?utm_term=what+are+the+five+proofs+of+the+existence+of+god PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4428045/normal_6061e3b51275d.pdfIn PDF document text
    • https://cdn.sqhk.co/lunabati/a08URii/4008690049.pdfIn PDF document text
    • http://luxomozuk.mypressonline.com/arc_length_calculus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417530/normal_6052a71ae81b5.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/DifYkii/screen_recorder_video_recorder_v_recorder.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421207/normal_5ffbd4ee4a443.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367937/normal_5fdd3fbf22b2f.pdfIn PDF document text
    • https://cdn.sqhk.co/nafumozuwe/cS5sjcX/puxifa.pdfIn PDF document text
    • http://wexigeziv.iblogger.org/remdio_para_alergia_na_pele.pdfIn PDF document text
    • http://vuletotam.scienceontheweb.net/tifevotapalav.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/nje7eji/95773535909.pdfIn PDF document text
    • https://cdn.sqhk.co/dulunukosep/gMl6gj5/ccna_security_practice_labs.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvopone/ia1gjib/append_html_template_in_jquery.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/selivuvumepaveb/carrier_chiller_model_30xa_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/98376571530.pdfIn PDF document text
    • http://pinukemedorurol.rf.gd/birth_certificate_change_form_illinois.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/1965710706.pdfIn PDF document text
    • http://xiwozoget.atwebpages.com/aminoacidos_estructura_quimica.pdfIn PDF document text
    • http://bigibejunewolov.rf.gd/msc_botany_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/57607855620.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/char_broil_patio_bistro_240_electric_grill_reviews.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_off0000f239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF239 5524 bytes
SHA-256: bf7d79805158e34409928e3e8586e4b15f901e2470be75eb4349a260652ad953
font_01_sfnt_off00010517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10517 10860 bytes
SHA-256: 1cc80af350aec41e538ffa19fa69c26ab966734e0bfc09121783c34a7eb0f1db

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