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

Static analysis result for SHA-256 0741cfd29e5f65b1…

MALICIOUS

Office (OLE) / .DOCX

156.9 KB Created: 2020-10-19 16:24:00 Authoring application: Microsoft Office Word
MD5: c27d9234e9751a20b99acf6024aa1efc SHA-1: cb52fcdbc8de38cb147a2e8dea7d7d6fcadd6f5d SHA-256: 0741cfd29e5f65b1aa4109ef4a59d28a73671f4ccd35cf80c3df2928ecf39a03
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, indicating an attempt to execute code. The ClamAV detection as 'Doc.Malware.Sagent-9780539-0' further supports malicious intent. The VBA script is heavily obfuscated, but the presence of CreateObject suggests it is designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Sagent-9780539-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Sagent-9780539-0
  • 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
d0a6497cb07b10e3700967f3bfacfd7398ab919e1393e4e1ddda61d0b30c3f61		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15475 bytes

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