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

Static analysis result for SHA-256 8f71742d1582c153…

MALICIOUS

Office (OLE) / .DOC

242.4 KB
MD5: 133736648adc2478c16abf05fcc8f19c SHA-1: cb00d9bd7eccc70938c2b5f303ef1acc0ae9aaac SHA-256: 8f71742d1582c153a4011a49f8bf5ab9fe4129b6937832fba73d68bc0e95a438
240 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.005 Visual Basic

The sample is a malicious Office document containing a VBA macro that automatically executes upon opening. The macro utilizes CreateObject and appears to be designed to download and execute a second-stage payload, as indicated by the ClamAV detection name 'Doc.Downloader.Generic'. No specific URLs or hashes were extracted, but the presence of the Document_Open macro and CreateObject calls strongly suggests a downloader functionality.

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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