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

Static analysis result for SHA-256 46cad0ffaf0d5f1f…

MALICIOUS

Office (OLE) / .DOCX

158.8 KB Created: 2020-09-17 16:56:00 Authoring application: Microsoft Office Word
MD5: 755edda173c659ba9dd67d3415ffdd5f SHA-1: 7bbdcc1cda82820a278117c00778e54f9276258a SHA-256: 46cad0ffaf0d5f1f1d43c5f9a23e3d2dd1a3de391489a357e7e4627fd62bc6be
240 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro that is configured to execute automatically. This macro utilizes CreateObject, a common technique for launching malicious payloads. The ClamAV detection 'Doc.Downloader.Generic-9763026-0' strongly suggests a downloader functionality. The document body is heavily obfuscated and unreadable, providing no direct clues to the lure. No scripts were extracted, but the presence of the Document_Open macro and the downloader heuristic indicates the file's primary purpose is to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9763026-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9763026-0
  • 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
d72f45ff27ad6de46c4e2f18d1cb6c13c4a0c6682629fccb5d0be1c4ab69db7a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19870 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 20 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.