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

Static analysis result for SHA-256 0be47d6064969c48…

MALICIOUS

Office (OLE) / .DOC

104.0 KB
MD5: c3361ab2181a430952ec315516ddcaa1 SHA-1: 70c21c66f00715991520d0b27f7bf256f00a3c7e SHA-256: 0be47d6064969c48bf3a4021df8cec7477f69520c9bc60e618c68edfa24046c5
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059 Command and Scripting Interpreter T1204.002 Malicious File

The sample contains obfuscated VBA macros, including a Document_Open auto-exec loader. The macros utilize CreateObject and potentially Shell/exec functions, indicating an attempt to download and execute a second-stage payload. The obfuscation and use of auto-execution suggest a malicious intent to compromise the user's system.

Heuristics 6

  • Obfuscated auto-exec VBA loader critical OLE_VBA_OBFUSCATED_AUTOEXEC_LOADER
    Auto-exec VBA reconstructs strings with a heavy custom decoder (numeric char-array, repeated hex-string decode, or junk-token Replace removal) and feeds them to a COM-instantiation or execution sink. This obfuscated-loader shape keeps CreateObject/Shell/URL indicators out of the macro source.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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
98d39f10c3d21a442792c4a85ae8f4d116fe44e4e5216681de75a0b149958fca
vba-macro oletools.olevba.extract_macros (decoded VBA source) 13284 bytes