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

Static analysis result for SHA-256 e340bbfe29b2651d…

MALICIOUS

Office (OLE) / .DOC

147.8 KB Created: 2019-04-03 06:53:00 Authoring application: Microsoft Office Word
MD5: b9e8adc1310fe75be9e76bca2d54eee7 SHA-1: c973b49ea206c824f48665811afa9e6f061ce826 SHA-256: e340bbfe29b2651d4b6f0687ab21f884edece939008227d506bf4f27d07b395e
200 Risk Score

Malware Insights

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

The sample is a malicious Microsoft Word document containing VBA macros, specifically an AutoOpen macro that utilizes GetObject. ClamAV identifies this as 'Doc.Downloader.00536d-6922083-0', indicating its function as a downloader. The presence of an AutoOpen macro and the GetObject call strongly suggest the execution of code to fetch and run a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.00536d-6922083-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.00536d-6922083-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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
774f511e243551009765f109ba7bc354cdc41c154662e3368f2e9ab521683b4e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23190 bytes

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