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

Static analysis result for SHA-256 eb9616bfd8da0e06…

MALICIOUS

Office (OLE) / .DOCX

189.5 KB Created: 2020-10-22 16:39:00 Authoring application: Microsoft Office Word
MD5: d062c8532863bed7e96830daae66da2b SHA-1: 1928e9343951c07ee9a0a3e4be9b8b625583ffb6 SHA-256: eb9616bfd8da0e060124c17de4c7503345dc4826ba9fadcd6da738aa42937c48
240 Risk Score

Malware Insights

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

The file contains VBA macros, specifically a Document_Open macro, which is designed to execute automatically when the document is opened. This macro uses CreateObject, indicating it likely attempts to download and execute a second-stage payload. The ClamAV detection as 'Doc.Downloader.Logan-9781905-0' further supports this behavior. The document body appears to be heavily obfuscated, making its direct intent unclear, but the macro behavior is the primary driver of the analysis.

Heuristics 7

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • 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
e27d29142f52c9bbf22d80d41e42b63f47a37f20e4370d5fd51155547914517e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 22921 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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