Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cef6b826842ac72…

MALICIOUS

PDF

235.8 KB Created: 2021-03-13 19:44:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 35b9dce636c3cc7b2da010170622e2d0 SHA-1: 540271b94f9588d0be713065f5e4e7e9728e633a SHA-256: 9cef6b826842ac72bfa4211de0e306e0921a8db2b3e2fdfe177a623510076047
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 0.9969

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://resalured.ru/123?utm_term=aplikasi+al+quran+indonesia+offline PDF link annotation
    • http://kumajamefe.getenjoyment.net/33066294398.pdfIn PDF document text
    • http://nanamojuvimujo.medianewsonline.com/nezalonobogosu.pdfIn PDF document text
    • http://rowefuzoj.mygamesonline.org/50530594684.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453334/normal_602a19b14025f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415334/normal_5fcd181698193.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/eiehegd/31706839721.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457008/normal_603b9c4fd2e75.pdfIn PDF document text
    • https://cdn.sqhk.co/sazobenapur/Righigf/friend_finder_online.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/golatukigomerusila.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/towutoginadivu/cytosolic_pathway.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b89eed1-296d-40df-a260-23a9740fe827/how_many_chapters_does_jekyll_and_hyde_have.pdfIn PDF document text
    • https://c6de0af5-2a4c-46da-924c-839bccb102c6.filesusr.com/ugd/5f1f0f_973bff9c65904584b6e629dc009ffd8e.pdf?index=trueIn PDF document text
    • https://ab60d57a-1f92-408f-9079-0b325776b613.filesusr.com/ugd/724fb5_0c01d5b6b9064b1cbf5a045c6370d827.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/king_kt76a_transponder_installation_manual.pdfIn PDF document text
    • https://6cf80756-66c2-4d2e-b15d-ff1677cb7115.filesusr.com/ugd/2257e8_0db018f4bffb4f40bcb052b8543b7044.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/91ba4d08-21da-49c5-8e32-86e69a45593d/wordpress_electronics_ecommerce_themes_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67ac5f4f-2e5e-4def-b8dc-d6dad594454c/which_is_the_definition_of_entropy_machine_learning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c0e2de5-1230-4d17-9a5e-467e4ffc0b55/99613462467.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ff021f0-0a24-4b52-9b42-fa33e4b45de8/atomic_mass_of_candium_lab_answer_key.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_off00036b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B42 5212 bytes
SHA-256: 59aaf2e6d3997099493afdff6321016afbd9032ba8958137751efdf5061351dd
font_01_sfnt_off00037d08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37D08 10408 bytes
SHA-256: ef7a8734cb9d3b28b549b4c2516c6b3d51b9e7998d7e6027b1d68c84ab1519c0

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