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

Static analysis result for SHA-256 4536e76cd843b9ca…

MALICIOUS

Office (OLE) / .DOC

168.9 KB Created: 2019-03-29 15:56:00 Authoring application: Microsoft Office Word
MD5: c5651fb1ed0e8de1e71e6993f760ba12 SHA-1: fab525fac772526aec1288da9825cdd7d361c5cd SHA-256: 4536e76cd843b9ca3ee644f8de81c4669e7d15b7866cf46dafe96599b4ccce0b
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-6916067-0, indicating its function as a downloader. The macro's execution of GetObject suggests it is designed to fetch and run a secondary payload from a remote source.

Heuristics 6

  • ClamAV: Doc.Downloader.00536d-6916067-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.00536d-6916067-0
  • 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
05cb94b9695129308d3449141b5eb7c9004bb4a9a3ef3afd07bfd71496fee4ad
vba-macro oletools.olevba.extract_macros (decoded VBA source) 24492 bytes