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

Static analysis result for SHA-256 6fecdafd068ee5fa…

MALICIOUS

Office (OLE) / .DOC

199.8 KB Created: 2020-09-21 06:43:00 Authoring application: Microsoft Office Word
MD5: ca2fcc447772313428b5946d371c8ceb SHA-1: b8e09c30b5d9d69a618604d1f12ce09ed86d6d74 SHA-256: 6fecdafd068ee5fa61848e1884a4159fdb498c1372e1a589536d8d0804ce3b3b
242 Risk Score

Malware Insights

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

The sample contains a Document_Open VBA macro that utilizes CreateObject and GetObject calls, indicative of malicious intent. The macro is heavily obfuscated, but its presence and the heuristic firings suggest it is designed to download and execute a secondary payload. The ClamAV detection further supports its malicious nature.

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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