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

Static analysis result for SHA-256 1d13a0fe58c9b38f…

MALICIOUS

Office (OLE) / .DOCX

194.0 KB Created: 2020-09-18 21:15:00 Authoring application: Microsoft Office Word
MD5: f4e2f09deb9b8067fc4aa8b985dcccae SHA-1: 035e14bfc777d1c13d98ceaf207104b8ac15eabb SHA-256: 1d13a0fe58c9b38ffc4121ee00cb8c1c7bd55d755cc87f610fb1a3c306204474
240 Risk Score

Malware Insights

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

The file is a malicious DOCX document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically, indicating an attempt to run malicious code upon opening. Heuristics suggest the macro uses 'CreateObject' and p-code execution, typical of downloaders. The ClamAV detection 'Doc.Downloader.Generic-9763611-0' further supports this. The document body content is heavily corrupted and unreadable, providing no direct clues about the lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9763611-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9763611-0
  • 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
27aa07f405fa9b3280133cc26ba8fa4c11df7235c7ef1a37f33a0286291c2144
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19156 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.