Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f254980729abb69…

MALICIOUS

PDF

74.2 KB Created: 2021-01-31 01:56:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6233a7acd062069a7de1c63f91f26208 SHA-1: 4a7984d31a6318ebd09e447cbec07687dfa9ff91 SHA-256: 7f254980729abb6991305f04587380e032168388855b76dd240c4f1ace709dbd
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/aws?utm_term=bergamo+italy+tourist+information PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469358/normal_5ff3fcceb7dcd.pdfIn PDF document text
    • http://organicnu.info/xowadaw3xhm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422144/normal_5ff86684557bb.pdfIn PDF document text
    • http://servicesforsupport.com/modern_tkinter_for_busy_python_develv84qu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443578/normal_5fd06190e1d83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489045/normal_600098fd9b9de.pdfIn PDF document text
    • http://gomotejux.iblogger.org/caetano_veloso_joia.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/sixolose/mhw_bow_progression_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/35030946769.pdfIn PDF document text
    • http://fixadamobus.epizy.com/canada_food_guide_guidelines.pdfIn PDF document text
    • http://livofikozenaduj.rf.gd/decorative_aluminum_sheets_canada.pdfIn PDF document text
    • http://rojaxenutu.rf.gd/l2_revolution_swordsinger_guide.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_off0000e4a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A7 5240 bytes
SHA-256: 6da172fa91174a662a3e9d34a462d6d6d6ae6b8a71eb59659f7172d78ec9bc6b
font_01_sfnt_off0000f66f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF66F 11324 bytes
SHA-256: 47d3a5b7f21665f71b6725a2e12bbff65557cba726d8fc3df87a24cf1865e51b

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