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

Static analysis result for SHA-256 f027412968ca0e56…

MALICIOUS

Office (OLE) / .DOC

201.2 KB Created: 2020-09-21 06:53:00 Authoring application: Microsoft Office Word
MD5: 4ff0b1bd11579f598282e52256154697 SHA-1: 85a2354a0ff8c1f914318bab4028da3595874c33 SHA-256: f027412968ca0e5616c9619929ee221ce025d86b0fb9f161ae2a85d4e724d4a6
280 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and utilizes 'CreateObject' and 'GetObject' calls, indicating an attempt to execute code. ClamAV identified this as 'Doc.Downloader.Generic-9764471-0'. The presence of VBA auto-execution with execution terms strongly suggests the macro is intended to download and execute a second-stage payload.

Heuristics 8

  • ClamAV: Doc.Downloader.Generic-9764471-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764471-0
  • 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.
  • 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
9db169fc4ddd466c1072ee5c22ca8db96af708e32d244fe20e5f377c4d90b405		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19197 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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