Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa074c5e700f9e7a…

MALICIOUS

PDF

276.9 KB Created: 2021-05-30 09:55:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ccefbbf2f17e7180c0f60c2d13ae59a6 SHA-1: 94f860dfee62b9aafdf8723b759758b93d929afd SHA-256: fa074c5e700f9e7a058911facfcd36b9a6a03a7125fd2b18c50775fa16cd7c5b
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 0.9829

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://xezojetit.ru/strik?utm_term=1992+by+the+center+for+applied+research+in+education+worksheets+answers PDF link annotation
    • https://nafufarub.weebly.com/uploads/1/3/4/2/134266214/josafufevun.pdfIn PDF document text
    • https://vejuxafesopekub.weebly.com/uploads/1/3/6/0/136010302/kitakarulisibukabem.pdfIn PDF document text
    • https://kejuzeke.weebly.com/uploads/1/3/4/4/134456394/4656643.pdfIn PDF document text
    • https://kivexobine.weebly.com/uploads/1/3/4/8/134859900/74527a434857.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427274/normal_60268569a2e98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473916/normal_6052f15467872.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477615/normal_5fffcb1d597c8.pdfIn PDF document text
    • https://vulajavup.weebly.com/uploads/1/3/4/6/134683256/nujol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487647/normal_5fe70f7adf47f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409123/normal_5ff7754938a2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458144/normal_60198cc2adfd9.pdfIn PDF document text
    • https://vamofelew.weebly.com/uploads/1/3/5/3/135398798/jupetan-tikozubi-betukonawu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393179/normal_6006d69fafd9c.pdfIn PDF document text
    • https://rugekake.weebly.com/uploads/1/3/4/5/134518704/5588177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413862/normal_6055490a8e93a.pdfIn PDF document text
    • https://jumedewumeba.weebly.com/uploads/1/3/4/3/134310957/4414140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468823/normal_5fd0e2a96e9d0.pdfIn PDF document text
    • https://zixojubagever.weebly.com/uploads/1/3/4/6/134613499/kojek.pdfIn PDF document text
    • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/mubujogiwigexivowu.pdfIn PDF document text
    • https://wefogazasu.weebly.com/uploads/1/3/4/8/134880183/5094499.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7daa59ec-febc-485e-b6b3-9f0a76d3f93a/fomosevufidutisukeri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/559cbc67-36d0-46f7-bfb4-cf3028bc9427/lederovejul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee8fef0b-c707-4f71-a2ee-62349e038ccb/gegexabof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73e643f9-660d-448b-ad3e-d53391fab45f/nature_by_ralph_waldo_emerson_central_idea.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2608392a-2561-4f3b-bff1-c2fa6df887a9/best_push_pull_routine_for_mass.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F26C 5884 bytes
SHA-256: 3f5144de87e23c149fee4401e5dd3faf1c6b1af158e8e168b908720ff0d2984d
font_01_sfnt_off00040683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40683 11976 bytes
SHA-256: 585c2c92d3847d99977baca0536343eb28d0c3d5eeb722fa5b86bb584a79846f
font_02_sfnt_off00042f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42F43 16232 bytes
SHA-256: 90063111fd84fc9d3bbe0e91a25c30074b178549c4c86487e0bfae44fa44017a