Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5624e01c4912fb2…

MALICIOUS

PDF

78.1 KB Created: 2020-11-29 13:19:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 07330fee29c96fef78ba602273511fe5 SHA-1: 91326ef83d7aa6bb2d92cafd735dd13b68e6e48b SHA-256: a5624e01c4912fb28c1d29629296be8dd86d896857efaccfc7b6c7dd660d0c0a
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 0.9997

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=que+son+las+normas+apa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373248/normal_5f9928a510ab1.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368488/normal_5f9a7faaa1bbf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465559/normal_5fc0bc81638cf.pdfIn PDF document text
    • https://resumasilazivo.weebly.com/uploads/1/3/4/5/134509929/3205564.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408992/normal_5fa5dbe45802b.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/ratekol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_5f960717924b4.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/4499251.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368226/normal_5f87621487cc6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/divexikav/best_gaming_laptops_under_500_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/jodoxelojamiri.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE587 4780 bytes
SHA-256: c33999d5ae949ddf6ddfe7a827a66933f9f7954d0eb0898b3eefc5f0ad506432
font_01_sfnt_off0000f59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF59C 11748 bytes
SHA-256: bc519919002c17cd3a18c3d8bcda7360bd210ca0968684468af16486dc17e589
font_02_sfnt_off00011c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C02 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230