Malicious PDF — malware analysis report

Static analysis result for SHA-256 e73d41f46baa8f1b…

MALICIOUS

PDF

77.4 KB Created: 2021-05-03 00:59:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f5d8a6b710619b5b9909bd8659626b88 SHA-1: 5a7a0e3dbc84cee48f34cf3e22c12140b4151b2d SHA-256: e73d41f46baa8f1b8bf0248920b5862c8b3bb073096b2a8f356a0ae88553bcfe
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 0.9992

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://maypoin.ru/strik?utm_term=best+places+to+donate+clothes+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421062/normal_5ffd675633d44.pdfIn PDF document text
    • https://cdn.sqhk.co/numobelez/ggj5iiX/bamboohr_performance_management_module.pdfIn PDF document text
    • https://cdn.sqhk.co/runetonorox/aaPOuen/sizegiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417997/normal_600d9dc00e8d1.pdfIn PDF document text
    • https://cdn.sqhk.co/lilokimoz/bJjhFeu/36726338873.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/rbguijv/jemogezamifi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412415/normal_6031daa793b28.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxiwimemo/ljhOjf7/18120853101.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CKsihKb/40504930244.pdfIn PDF document text
    • https://cdn.sqhk.co/sivumazudi/hfHhhHB/23764631966.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416930/normal_601a9bdf3c74e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450350/normal_606e640b2908c.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/eb6a90eb-3673-4922-9037-1d8fdf610362/68939915469.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/22655520037.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95b90cf2-fe8e-46c7-9fc4-f3329914b8f0/britax_frontier_clicktight_installation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a523a6f4-0014-478a-a565-424fe86d0f37/zixumolasilenulojujudaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f5ef20a-8ca9-4642-8fcf-9332684f4b1d/mosutufikadelalojoperi.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/66484186392.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0055d8fa-078a-4e95-8c65-8b97ca176d77/sex_on_the_beach_jello_shot_recipe_with_cranberry_juice.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/barbell_upright_row_video_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3c7af99-16b8-4025-9031-016079cfd314/67732456228.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/fullerton_india_credit_annual_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b855ce2a-b2ca-4e18-ae4a-cbc4bfc1ca70/lowinewimovafiwit.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_off0000f04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04E 5360 bytes
SHA-256: 8e04413a55d273fbbead6b7d52d4fcaf77bc3c2bfbcba20433ea0868da926279
font_01_sfnt_off0001025a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025A 11068 bytes
SHA-256: bd712f20b3a9d28b142bab367dfb406c2fab240a09b653f82dbc24f0d31cb5cc