Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee9aa1c6083a9fee…

MALICIOUS

PDF

79.0 KB Created: 2021-03-01 13:32:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 313a852b30992ef535bf3fa4b3d32033 SHA-1: 2f7b5f8a9a8246a6bdc9fd43094550598cf4e231 SHA-256: ee9aa1c6083a9feedf65fe05a3a0bf251c835b1fc313b3765305de177a82fa4c
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely intended to deliver a phishing page or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a common phishing or malware distribution technique.

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://seumenha.ru/strik?utm_term=what+are+eight+characteristics+of+good+listening+skills PDF link annotation
    • https://cdn.sqhk.co/disegivoji/DGjighM/82460910772.pdfIn PDF document text
    • https://xetupowo.weebly.com/uploads/1/3/1/3/131382232/20df4990c.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/jjKFi0X/play_super_text_twist_2_free_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379233/normal_5fffd4caa144c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484997/normal_600f423eba4d9.pdfIn PDF document text
    • https://cdn.sqhk.co/keximovib/gvhemJI/pujutilibido.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453103/normal_603474df544fd.pdfIn PDF document text
    • https://bateworolod.weebly.com/uploads/1/3/4/3/134315912/f8739cfe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379374/normal_5ffabaa437cb5.pdfIn PDF document text
    • https://cdn.sqhk.co/nubavojek/fifeVqZ/kujawosigimoj.pdfIn PDF document text
    • https://cdn.sqhk.co/posiraki/iaDhehb/98372046942.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502248/normal_5ffd9f303d7c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453334/normal_5fd60f7624019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373004/normal_5ff010d13d3e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486534/normal_5fee11f60f649.pdfIn PDF document text
    • https://cdn.sqhk.co/suxidixip/haHl6ie/tikplus_real_fans_likes_followers_for_tiktok.pdfIn PDF document text
    • https://wegonugu.weebly.com/uploads/1/3/4/0/134040733/difeludabi-resazipoxomemab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488141/normal_5fe1b3d238421.pdfIn PDF document text
    • https://fezugewibopav.weebly.com/uploads/1/3/5/3/135346468/dimima-xulaboteselele.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E4 5360 bytes
SHA-256: 753c3b427265bf6340600bfd7cc05ca5a85368e39a94c3bb24b2ee7aa52a464c
font_01_sfnt_off00010b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2A 10356 bytes
SHA-256: 8d8768e551948bfc260c5ca037c497d1899d482d1ffdb383ffefb4a31c4f7a07