Malicious PDF — malware analysis report

Static analysis result for SHA-256 64c953e62f6628f6…

MALICIOUS

PDF

75.5 KB Created: 2021-03-06 00:06:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ea1bd4e5ce78f89c471745b986d059c0 SHA-1: d19a5de6148bd653fa4c17f0f1a22fdb19295b3c SHA-256: 64c953e62f6628f64957862d8001a1d78e1afe43bad2f0aef2b41fc9f18365ab
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit vulnerabilities or trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/strik?utm_term=dewalt+air+compressor+d55168+parts PDF link annotation
    • http://islta.fun/92041840767px5hu.pdfIn PDF document text
    • http://kigurumi.org/label_tectonic_plates_worksheet_ks2vkex9.pdfIn PDF document text
    • http://povulofi.mywebcommunity.org/98092839147.pdfIn PDF document text
    • http://bridgecommerce.com/wisevozifamuraluwm10e4.pdfIn PDF document text
    • http://waratepesemur.iblogger.org/can_you_self_study_ccna_exam.pdfIn PDF document text
    • http://testersairf.xyz/91207399476z5azf.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/bewop.pdfIn PDF document text
    • http://winoraama.site/test_all_tenses_englishjlxx2.pdfIn PDF document text
    • http://zabolojisag.getenjoyment.net/19115217864.pdfIn PDF document text
    • http://copyrightmediahelp.com/nedixar6vte.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d3dd75b0-514a-4dbf-a1f7-973a5b421fb1.filesusr.com/ugd/5b46ec_4a6191d4ca284c8abf8bb03435574e9c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/ccie_data_center_written_dumps_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/kyle_baker_nat_turner.pdfIn PDF document text
    • https://0ccb9a81-bd3c-41bd-bc79-2352350f0e5e.filesusr.com/ugd/95ea6b_1388300c5e634851b1bbed711fcc6008.pdf?index=trueIn PDF document text
    • http://wenibeliso.atwebpages.com/xamowebulugigopefozo.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/oven_sheet_pan_eggs.pdfIn PDF document text
    • https://e791dc30-71fd-4519-a75e-453748eb9c32.filesusr.com/ugd/8a5fcf_479a120ca6104306bd5d3c452a0aa930.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nigimul/schengen_visa_france_application_form_vfs.pdfIn PDF document text
    • http://pasivete.epizy.com/hair_clipper_oil_walgreens.pdfIn PDF document text
    • http://devoleresi.rf.gd/42159600484.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_off0000e95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95C 5832 bytes
SHA-256: 4e9c508e74399d7d02b9a1bb2826c544d6e12a6f374adf7bdad9735f736eac47
font_01_sfnt_off0000fd3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3D 10408 bytes
SHA-256: 18ad3c6d4477a3489365c5476e9684807500600735dd8c87c069547b1806b7a3

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