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

Static analysis result for SHA-256 0b7f26dc76b83127…

MALICIOUS

Office (OLE) / .DOC

242.4 KB
MD5: cbbf33a0c5a571ce61a45ab41c028672 SHA-1: 8ba58f058ea03ae58108bd35fed0b772daf3de14 SHA-256: 0b7f26dc76b83127cdf687f818e652f050a9b3726aa76bc30947f94e4e25ffd4
202 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initial execution. The script appears to be obfuscated but the presence of CreateObject and the overall structure strongly suggest it is designed to download and execute a second-stage payload. The ClamAV detection as 'Doc.Downloader.Generic' further supports this assessment.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • 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
53c940c9e61b86bba3a049505972bd865d71f0e7c155177329bd8613b2e4028a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18779 bytes

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