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

Static analysis result for SHA-256 c19dd05cf11f244d…

MALICIOUS

Office (OLE) / .DOCX

217.1 KB Created: 2020-09-21 20:39:00 Authoring application: Microsoft Office Word
MD5: eed3b64b0cecdaf53dc6b7897cc25a94 SHA-1: 9e329077f05351a315c6db0f86bd0df73d37fe6a SHA-256: c19dd05cf11f244d0b2189ff9b5075a190c1a64d8c65dd5f47a65e3bb8c2b869
280 Risk Score

Malware Insights

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

The file contains VBA macros, specifically a Document_Open macro that automatically executes upon opening. Heuristics indicate the use of CreateObject and GetObject, common for downloading and executing additional payloads. The ClamAV detection as 'Doc.Downloader.Generic' further supports this. The embedded URL is benign, but the macro's functionality points to a downloader. No specific family is identifiable from the provided evidence.

Heuristics 8

  • ClamAV: Doc.Downloader.Generic-9764666-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764666-0
  • 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
6d2f50f334b8e082813c694e310720d341c184a4af51360bc43b61318b8ab2c5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19051 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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