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

Static analysis result for SHA-256 db6d1b13388fd561…

MALICIOUS

Office (OLE) / .DOCX

173.0 KB Created: 2021-01-22 12:16:00 Authoring application: Microsoft Office Word
MD5: b6a905d8e4c15aa5df331df1c5bdf143 SHA-1: d42a36604ddfd02a856eed8213542ef6637c39ae SHA-256: db6d1b13388fd56125d3143e660a7d19e7a98fd2ed3787ce35da6fc8a3bd5c9e
240 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros, specifically a Document_Open auto-execution macro. The ClamAV detection 'Doc.Malware.Emodldr-10033989-0' and the presence of a VBA macro with execution tokens strongly indicate that this document is designed to download and execute a second-stage payload. The embedded URL, while benign according to reputation, is likely a placeholder or part of the obfuscation.

Heuristics 7

  • ClamAV: Doc.Malware.Emodldr-10033989-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10033989-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
57c5fc8ce17815567da52642c52710073a1f26f502815de80b26d094034f9496
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16557 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.