Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e31def8d8baf8ac…

MALICIOUS

PDF

79.9 KB Created: 2020-12-18 22:58:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9d68e2003de6ad54a8b966cfacb863f6 SHA-1: 113679e553244308f9c3aa91e7925fe2f4f7078d SHA-256: 8e31def8d8baf8acacc4c91481eb8a4d4427176279fc9ffa49d36e1680ef61aa
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 0.9998

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://traffine.ru/strik?utm_term=gay+pup+play PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501231/normal_5fbf526a48155.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471475/normal_5fa8c0ea4eed4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460060/normal_5fc7fe124973a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404969/normal_5fc050cf05517.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455387/normal_5fbafb5896437.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/pizexopenaxu/nugejimewuzigenadijulajom.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2d41a2c6405023121711/1606233409852/69372657806.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc69c572cf09257bd930dfc/t/5fcaf94f6e74d26c6ff67e88/1607137615191/love_your_husband_love_yourself.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc105f69955c744b53c3d2c/t/5fcf0dce10aae7757168668d/1607405007236/sozinibusalegukeri.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/email_signature_template_outlook_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/97694786608.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/3405722232.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc676695e8e827d42b421ad/t/5fd0617551357b44bb8fe913/1607491958838/17354211450.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/estimating_products_worksheets_6th_grade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f83717e7202640ea8e04/t/5fca4703414f5e35238692a1/1607091972330/93280326090.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_off0000ff68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF68 4672 bytes
SHA-256: fa3258edacd2b513b994dc9ae6392b2151d2e5caa13d9c5efd7b787f7d4e1d99
font_01_sfnt_off00010f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F6E 10512 bytes
SHA-256: c6b3f22616c79654369804f390d676d7ed1dcdf0b7c36658b1b2ecf06f6376d4