Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 6584db21f3b24953…

MALICIOUS

Office (OLE) / .DOCX

195.3 KB Created: 2020-09-18 21:15:00 Authoring application: Microsoft Office Word
MD5: a6ccafe75a67b6e7245599bc94336a9d SHA-1: 1a64593572c1a1db443c7ee46571d4b6151f2692 SHA-256: 6584db21f3b24953242d8d42e4ffa62e8026aebaea9f5c6b5cae066f4c279370
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a Microsoft Word document containing VBA macros, specifically an auto-executing macro named 'Document_open'. This macro utilizes 'CreateObject' and appears to be designed to download and execute a second-stage payload, as indicated by the ClamAV detection 'Doc.Downloader.Generic-9763611-0'. The obfuscated nature of the script prevents a more detailed analysis of its specific actions or the exact URL it may contact.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9763611-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9763611-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
27aa07f405fa9b3280133cc26ba8fa4c11df7235c7ef1a37f33a0286291c2144		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19156 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.