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

Static analysis result for SHA-256 a298120c78be538c…

MALICIOUS

Office (OLE) / .DOCX

83.9 KB Created: 2020-12-30 06:48:00 Authoring application: Microsoft Office Word
MD5: 9a03d3e6194691fca06308e722b889a2 SHA-1: 410e8dfbe9801cbc41a15901b2349e56e30dfd33 SHA-256: a298120c78be538cea50fb230cd1ec8c6f9a1845b9082cbfcb5bfc2a1c02ce1a
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1569.002 Shell Execution

The sample contains a malicious VBA macro that is automatically executed upon opening the document. This macro utilizes CreateObject to execute arbitrary code, likely to download and run a second-stage payload. The obfuscated document body content does not provide further clues about the specific lure.

Heuristics 6

  • 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.
  • 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
f392ec7de4bc91e9168573ed3554ded1ffa8839807d0d22211a4c7f8e84a6f24		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6590 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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