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

Static analysis result for SHA-256 718a6bd57357ae4a…

MALICIOUS

Office (OLE) / .DOC

212.4 KB Created: 2020-09-21 12:09:00 Authoring application: Microsoft Office Word
MD5: 6f27bf3e4d6e5ae76d2ef608b1397fe8 SHA-1: f424ff9e4e31b1782cb24170a35f62ac833c8886 SHA-256: 718a6bd57357ae4a5846096e897df2f41aaef2979454ab14492cc7c19d40760d
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The script uses CreateObject and GetObject calls, indicating an attempt to interact with the system to download and execute a payload. The ClamAV detection further supports its malicious nature. The specific payload and download URL are obfuscated within the script, preventing direct IOC extraction.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764508-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764508-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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.
  • 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
cea30dbaa44bcaf57fbcd15c35be69cfffbad74d3b69c3addc059acf5ad797f9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19026 bytes

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