Malicious PDF — malware analysis report

Static analysis result for SHA-256 5067ed3d5262d18a…

MALICIOUS

PDF

99.3 KB Created: 2021-02-23 01:32:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 93ddb0515e29af6957e95b601e2e8734 SHA-1: d1652342b7bbdfe422a924f44cedbe2ed67395dd SHA-256: 5067ed3d5262d18a5574074dfb029dbf8ae6015dd4491ab5fa1d0f7d780191ae
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains references to 'Helter skelter meaning song' and the wkhtmltopdf tool, suggesting a lure to disguise malicious intent.

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://maypoin.ru/strik?utm_term=helter+skelter+meaning+song PDF link annotation
    • http://lawigimik.iblogger.org/subletting_contract_template_switzerland.pdfIn PDF document text
    • http://jsexj.fun/tetrahidruro_de_platino_tradicional2glu6.pdfIn PDF document text
    • http://drive4mclaneaustell.com/history_of_christianity98p0u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471106/normal_5ffa0971bbfdf.pdfIn PDF document text
    • http://levelupguild.com/897753690066y5zl.pdfIn PDF document text
    • http://sewalenugebob.iblogger.org/viwutojowunime.pdfIn PDF document text
    • http://photoforce.ru/core_teaching_skills797lv.pdfIn PDF document text
    • http://bred-enligne.com/livro_so_bernardo_graciliano_ramosg4x6y.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fegatiteberev.epizy.com/dexekizovokukere.pdfIn PDF document text
    • http://sisuraregimu.rf.gd/flash_animation_software_free.pdfIn PDF document text
    • http://kobezitidub.rf.gd/literary_terms_list_quizlet.pdfIn PDF document text
    • http://gulizut.epizy.com/oxford_american_handbook_of_clinical_pharmacology.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/juxilo.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/alimentacion_saludable_segun_la_oms.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/professional_compensation_plan_template_gsa.pdfIn PDF document text
    • http://tafoboverel.epizy.com/rulunise.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/nedebekaxerotuwuj.pdfIn PDF document text
    • http://nenidexixod.epizy.com/vukawe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B6C 4816 bytes
SHA-256: 726ecfb42388355f9d8a62d72c9a67c5779c827c05036f556166bc0fe62ae56a
font_01_sfnt_off00014ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BA2 11652 bytes
SHA-256: 9bbc3ed9e710b465559eae758555ce82d32ea1a8073773e558ecda0d111a8a9c
font_02_sfnt_off000171cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x171CB 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.