Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ceefb28e5d22f7c…

MALICIOUS

PDF

75.4 KB Created: 2020-12-30 05:58:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0ccb680ec643e17ac15c55d1455760eb SHA-1: dfd18b0102ec679988dc53750ab2d95247aa2a62 SHA-256: 6ceefb28e5d22f7ccd5fc6807cd1158ddffc53f1981fbe2bad661116f8a2feae
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://trafffe.ru/123?utm_term=descargar+el+planeta+del+tesoro+pelicula+completa+espa%25C3%25B1ol+latino+mega PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fcf9abe5dfde.pdfIn PDF document text
    • https://cdn.sqhk.co/kedilexele/ibghzi7/relaxing_cruise_lines.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/jc1gjcg/55560163361.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/agjSnjN/gakuwoxajaxoxuba.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/hdhbLhe/zinexamaxaneboliju.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/ihCgjyf/32838490621.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/gurowozenupifi/upload_a_video_on_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/67083627826.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/73502016104.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/kerala_psc_assistant_engineer_civil_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/shade_of_vampire_book_25.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/jexafitememujononujixag.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_off0000e470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE470 5604 bytes
SHA-256: 6059a274033faa7f94cf87d5e68d71e34d3bb80528c9776a7e83a4bafb1ca30c
font_01_sfnt_off0000f72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72D 11652 bytes
SHA-256: 58c93b3d18bc9b0377f3ef1645b719bb0d2da1b08a36bbe871d656ed939eb4ee

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