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

Static analysis result for SHA-256 a9e9b3f8a2833008…

MALICIOUS

Office (OLE) / .DOC

241.9 KB
MD5: 42443b172f24058ac59f6725fcf02a1a SHA-1: 6bc4a308b38f8cda598ea87fac28fb805ddd3647 SHA-256: a9e9b3f8a28330089d36e3ace6c5aa5ce2a38204767293a05e9c407ad2c4da4e
240 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open auto-execution macro. This macro utilizes CreateObject, a common technique for initiating malicious actions such as downloading and executing further payloads. The ClamAV detection as 'Doc.Downloader.Generic' strongly supports this downloader functionality. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • 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.
  • 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
53c940c9e61b86bba3a049505972bd865d71f0e7c155177329bd8613b2e4028a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18779 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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