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

Static analysis result for SHA-256 6b5ebbbde96ad250…

MALICIOUS

Office (OLE) / .DOCX

157.2 KB Created: 2020-10-19 19:04:00 Authoring application: Microsoft Office Word
MD5: 92f2869a685af3938dd27dd2867a7929 SHA-1: d0da183c572e6e7f68efb187324036b2b0b03d92 SHA-256: 6b5ebbbde96ad250862ea9aa50c26175f8bb8db3025d770f50681f1136610f7c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initial execution. The macro uses CreateObject, indicating it's likely attempting to execute arbitrary code. The ClamAV detection 'Doc.Malware.Sagent-9780620-0' further supports its malicious nature. The obfuscated script content prevents a detailed analysis of its specific actions, but the presence of auto-execution macros and the detection strongly suggest it's designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Sagent-9780620-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Sagent-9780620-0
  • 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
f5b87ce45487709d15d050e57056fa93cd3421269a64b3bdcf77894d3425125c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15582 bytes

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