Malicious PDF — malware analysis report

Static analysis result for SHA-256 d26755618352b914…

MALICIOUS

PDF

205.2 KB Created: 2020-12-20 23:06:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c23e19601f05c72d9b69fbc8297a0020 SHA-1: acbecd0a4111ce27fc6fedac8768f0a3457a2ef3 SHA-256: d26755618352b91480b02e95a3e567174110dd0177ba4ec4bd36dd0d61d14a00
96 Risk Score

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 0.9965

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://traffnew.ru/strik?utm_term=tangled+2001+soundtrack PDF link annotation
    • https://ximixejolulozo.weebly.com/uploads/1/3/4/3/134351986/1964506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464734/normal_5fa87095854fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446770/normal_5fb55baeee1cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373797/normal_5fa3bb03636f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375708/normal_5f8b7b6f5b551.pdfIn PDF document text
    • https://nojabepeteguki.weebly.com/uploads/1/3/4/6/134669956/6500124.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469374/normal_5fddbfbf4fcf3.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/tonisefoteka/when_your_boss_makes_fun_of_you.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/tojowiz.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/wii_error_code_51332.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/48987984642.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/adobe_reader_8_offline_installer_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/post_apocalyptic_fiction.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/wet_and_wavy_hair.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/free_art_gallery_bootstrap_template.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_off0002ea61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA61 5444 bytes
SHA-256: 5497135614d308da96820bb76557a62f3bff16279e29f6e1cfa50de16491b60f
font_01_sfnt_off0002fcfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCFD 12660 bytes
SHA-256: 3a78deaf783fa3ff0b14b33ec4f23f0f289b0e6d5a954511dbe1c97405c5e6b7