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

Static analysis result for SHA-256 e657f699fadc9b66…

MALICIOUS

Office (OLE) / .DOC

78.0 KB Created: 2021-12-22 09:40:00 Authoring application: Microsoft Office Word
MD5: 553568f406c8d0d06e0ed08a1579a243 SHA-1: b92e0a65988432ef22831d2be13195997bd84f4a SHA-256: e657f699fadc9b66d192a72bfd8a9e50f2a8100661c391819b6f83675c94375a
402 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The script utilizes WScript.Shell to execute a command that appears to save a file named 'tableTableMouse.h' and then executes it. This indicates a downloader or dropper functionality. The specific family is not identifiable from the provided evidence.

Heuristics 10

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • ClamAV: Doc.Downloader.WordBlueFont12213-9918948-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.WordBlueFont12213-9918948-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • 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
f43978ea672d09e137f5718bfbdd9380f93740668bf51ff15105085376851c6a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1007 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.