Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca6012bbc8f704e…

MALICIOUS

PDF

83.1 KB Created: 2021-03-03 01:50:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 2e2cf4f14b9d96aba3a01c2e1345819c SHA-1: 5d88591d52ad6fa30b4a57da46caaaf8e8a6c84a SHA-256: 0ca6012bbc8f704e545fd2253ea9fd0695063651f714064ede44518bfe92aa62
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/123?utm_term=how+to+reset+replace+filter+on+kitchenaid+refrigerator PDF link annotation
    • http://kamikofonem.mygamesonline.org/spelljammer_ships_5e.pdfIn PDF document text
    • https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/topazavupavup.pdfIn PDF document text
    • http://vumexovuvelafe.medianewsonline.com/lord_of_the_flies_discussion_questions_chapter_11.pdfIn PDF document text
    • https://fenotitejov.weebly.com/uploads/1/3/5/3/135316040/gajegaziku.pdfIn PDF document text
    • https://xorimaki.weebly.com/uploads/1/3/0/7/130739578/bexomojepefuro.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/noxonakinugonej.pdfIn PDF document text
    • https://nonokutofukidob.weebly.com/uploads/1/3/4/8/134872148/2678859.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/ed06799.pdfIn PDF document text
    • https://bijadatexate.weebly.com/uploads/1/3/4/0/134013249/3498d.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/wifukedot/google_drive_docs_sheets_slides.pdfIn PDF document text
    • http://rasunafosav.epizy.com/create_fillable_template_word_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/wisconsin_civics_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/aviation_security_program_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/nafotuzi.pdfIn PDF document text
    • https://s3.amazonaws.com/falejogajir/functionalist_perspective_on_deviance.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/binukujoripokogeso.pdfIn PDF document text
    • http://buloderijapu.epizy.com/91711947106.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/accident_reporting_forms_workplace.pdfIn PDF document text
    • http://pikosugurib.rf.gd/40474794646.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD53 5536 bytes
SHA-256: d79a0273639ce8d03147f0908d86d9726253369c6b6bd2513dd3dd2c75587d66
font_01_sfnt_off0001102b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1102B 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00011b8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B8E 10136 bytes
SHA-256: 5e08fcbaf216ac92fde7ccc104c97c371ece83b6bc876c94b6dc95efd32aaf42

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