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

Static analysis result for SHA-256 42ec2d9e70d3ba00…

MALICIOUS

Office (OLE) / .DOCX

182.4 KB Created: 2020-10-30 14:06:00 Authoring application: Microsoft Office Word
MD5: 24817e0767c134d696d4c280495af70a SHA-1: bea45d1294122f8688ab97e41affdf623725f985 SHA-256: 42ec2d9e70d3ba004ce4091e8f2f978ec316c09f7e139ebcb11f6d4bdfb56741
240 Risk Score

Malware Insights

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

The file is a malicious DOCX document containing a Document_Open VBA macro. This macro utilizes CreateObject to execute code, a common technique for downloading and running second-stage payloads. The ClamAV detection as 'Doc.Malware.Emotet-9785300-0' strongly suggests Emotet, a known banking trojan and downloader. The embedded URL, though flagged as benign, is listed as an IOC for completeness.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
953bcc7800f8e12231199058de4be56a41e5df3186000111c4b5440de64866f2
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17395 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.