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

Static analysis result for SHA-256 19a5824353150080…

MALICIOUS

Office (OLE) / .DOC

155.8 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word
MD5: fc86137474e09a1ecb4cd381e343e686 SHA-1: a0de348a5293eebbc0c951ddb5a14a8771da9c2a SHA-256: 19a5824353150080cec0e20989d1c2d0343c6097dfc54301b7a0b819b1cb27e8
242 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros. The 'Document_open' macro is present, along with calls to 'CreateObject' and 'GetObject', indicating an attempt to execute arbitrary code. The macro's obfuscated nature and the presence of these functions suggest it's designed to download and execute a second-stage payload. The ClamAV detection further confirms its malicious nature.

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

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