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

Static analysis result for SHA-256 a39fb6c88577cf14…

MALICIOUS

Office (OLE) / .DOC

629.0 KB Created: 2021-10-12 23:31:00 Authoring application: Microsoft Office Word
MD5: 9934f525e8ea1c8a4b24a3f2e4bc41fe SHA-1: 579e8c03eac407eb6cc268419d0cc39ea743a14e SHA-256: a39fb6c88577cf1433d6c45a30ae8f9cd746431a81a8f0e883ebdeaf3479b220
182 Risk Score

Malware Insights

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

The Document_Open VBA macro is triggered upon opening the document. It constructs a command line that downloads a second-stage executable from 'http://18.195.143.183/7/7/BTL_01145120_160850IMG.exe' and saves it as 'C:\Users\Public\Documents\livetrip.exe'. The macro then executes this downloaded file. The command line is written to 'C:\Users\Public\Documents\admittreatment.cmd' before execution.

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
9701ec967e5adff41e43d130e3c11150d01616b9235c2c6961ed6f4e8ef5b496		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 878 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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