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

Static analysis result for SHA-256 0cd86d7ed3912dba…

MALICIOUS

Office (OLE) / .DOC

154.7 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word
MD5: b43de250da5170f436318835a4bbf744 SHA-1: 185d1f168e94edefa419ef7cc53a5e949ef421af SHA-256: 0cd86d7ed3912dba8b9839ce88db3c410e399f2c65dec0c093a4e587c6b82252
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 'Document_Open' macro is present and configured to execute, indicating an attempt to run malicious code upon opening. Heuristics indicate the use of 'CreateObject' and 'GetObject', common for downloading and executing payloads. The VBA code is heavily obfuscated, making it difficult to determine the exact payload, but the overall pattern suggests a downloader.

Heuristics 7

  • ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
  • 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
63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15901 bytes