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

Static analysis result for SHA-256 47d9041111f81b08…

MALICIOUS

Office (OLE) / .DOC

173.0 KB Created: 2021-01-25 09:42:00 Authoring application: Microsoft Office Word
MD5: 6c1219812f01ad5506c7caae9682a1f2 SHA-1: f5a4d4e8d0b3f235503acdbd0718e07fa4b7115c SHA-256: 47d9041111f81b08254a97fd3a4ba892eeaa147e3405cff3b7260e333a928f75
200 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open macro that utilizes GetObject, indicating an attempt to automatically execute malicious code when the document is opened. The ClamAV detection and heuristic firings strongly suggest this is a malicious document designed to download and execute a second-stage payload. The embedded URL, though benign in reputation, is noted as present within the document text.

Heuristics 6

  • ClamAV: Doc.Malware.Valyria-10034158-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Valyria-10034158-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • 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
1604f6e2e05bd78747d6f8ed2ec7d90b3ad25242821a34c9eac132c9f36477a5
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8432 bytes