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

Static analysis result for SHA-256 06312595c314eb6f…

MALICIOUS

Office (OLE) / .DOC

199.1 KB Created: 2020-09-21 06:43:00 Authoring application: Microsoft Office Word
MD5: 0328d3b071688ec4a2859234f09a0fa2 SHA-1: 2744c938d41e20e87b0de00dfefa4313e8a61ffe SHA-256: 06312595c314eb6f890b8e7a5111dafd625ce21c4e6ba6094d446924895e2a1a
242 Risk Score

Malware Insights

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

The sample is a malicious OLE document containing VBA macros. The presence of a Document_Open macro, CreateObject, and GetObject calls, along with p-code auto-execution, strongly indicates that the macro is designed to download and execute a secondary payload. The ClamAV detection as 'Doc.Downloader.Generic' further supports this conclusion. No specific family could be identified due to the obfuscated nature of the script.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764468-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764468-0
  • 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
7169cbbf5de322d778ca9a77dc58bcf8bb22a6f6d4bfec64dbfa06bc63509b99		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19229 bytes

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