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

Static analysis result for SHA-256 522c2dc1ddd02fb8…

MALICIOUS

Office (OLE) / .DOCX

154.0 KB Created: 2020-09-22 12:58:00 Authoring application: Microsoft Office Word
MD5: 06e48b5a82586b5c4e5e792db9a50e79 SHA-1: 351fc343799c61d6ef34f22a5c97f80fb0a7081f SHA-256: 522c2dc1ddd02fb8e3718418be524df238dda9e30b52aae22abd417881f1f359
280 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates an attempt to execute code automatically when the document is opened. The ClamAV detection and heuristic firings strongly suggest malicious intent, likely to download and execute a secondary payload. No specific IOCs like URLs or hashes were extracted from the provided evidence.

Heuristics 8

  • ClamAV: Doc.Malware.Ewtz-9765445-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765445-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
3534612e311adddbcf2e093d61bfa43aa100b688e0fa70d64062312eb6cd9cc9
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17155 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.