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

Static analysis result for SHA-256 80e1bc32c17a5092…

MALICIOUS

Office (OLE) / .DOCX

167.9 KB Created: 2020-09-24 06:41:00 Authoring application: Microsoft Office Word
MD5: bdbf8893e2986657dc31c3d38b3a80b2 SHA-1: bf826632b4eb162fe3aa81857181b30718eab154 SHA-256: 80e1bc32c17a50925f89034a663d003675155ef685794381b55a771b8b793dd1
202 Risk Score

Malware Insights

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an attempt to execute code upon opening. The macros are heavily obfuscated, making it difficult to determine the exact payload, but the presence of macros and the CreateObject call strongly suggest it's designed to download and execute a second-stage payload. The ClamAV detection further supports its malicious nature.

Heuristics 6

  • ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
  • 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
5fc186fdbad9f31c9e64d83153a39dd477b4feadffd069d1417de0a82694326f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18827 bytes

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