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

Static analysis result for SHA-256 76aa5ad0c47b2985…

MALICIOUS

Office (OLE) / .DOCX

167.5 KB Created: 2021-01-22 16:11:00 Authoring application: Microsoft Office Word
MD5: b9a8804af39e1f183bc72bbb48312e5b SHA-1: 80b49959f2c670e9bf928f2df145ac0541933936 SHA-256: 76aa5ad0c47b29855238c26ef7af65678803515eeda4ea34984871a644c45086
202 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 and configured to execute obfuscated VBA code. This code likely attempts to download and execute a second-stage payload, as indicated by the 'CreateObject' call and the ClamAV detection signature 'Doc.Malware.Emodldr-10033990-0'. The VBA code is heavily obfuscated, making it difficult to determine the exact download URL or execution method without further dynamic analysis.

Heuristics 6

  • ClamAV: Doc.Malware.Emodldr-10033990-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10033990-0
  • 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
5ed4257a756cf59fd0bdd4996a568d11e210a8cb1fd2c78a16a7c0bd2a73f2f9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16688 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.