Malicious PDF — malware analysis report

Static analysis result for SHA-256 041246ddc9379fde…

MALICIOUS

PDF

76.1 KB Created: 2021-02-27 01:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ec54a772475032b3286efbe7d15f4707 SHA-1: 70eb1696dbbedc256cbeac5c2db4855db421aa93 SHA-256: 041246ddc9379fdea6f7efc54f42885cd3494ef1a2016e778bd2c0b6a05b58fb
96 Risk Score

Malware Insights

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

The file is a PDF containing multiple embedded URLs, with one specifically highlighted in the metadata. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site or download a secondary payload.

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://jottigo.ru/wix?keyword=el+camino+del+guerrero+de+la+luz+pdf PDF link annotation
    • http://themarkuzmusic.com/wawisiwevukujanipebamkjbyf.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxovunevo/ifichfb/94911881241.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/iiuidcR/86906700487.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/216284957520yu6c.pdfIn PDF document text
    • http://nobizifawuzim.iblogger.org/are_craftsman_torque_wrenches_guaranteed_for_life.pdfIn PDF document text
    • https://cdn.sqhk.co/badalozebale/jhXB6hG/save_me_from_the_dog_house.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefawoz/eGhbrgh/forgotten_synonyms_noun.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/ZNhjhfQ/hashtags_in_portuguese.pdfIn PDF document text
    • http://romabeveseruzor.22web.org/weather_report_clinton_md.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_600afd6ea5e10.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/JIjfag4/15130458280.pdfIn PDF document text
    • https://cdn.sqhk.co/godereliku/fEt6ijO/cbse_class_9_science_notes_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xenemusexo.epizy.com/what_is_system_architecture_diagram_with_example.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_off0000eada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADA 5304 bytes
SHA-256: c7723d9874c6200f8f367822b7d40f39d985bd6c97278fb1694b885a17266227
font_01_sfnt_off0000fcdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCDC 11396 bytes
SHA-256: 8957626a9f6e389c679b8bd347fc52c6af7984f53b8b3547868b7d885def878e