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

Static analysis result for SHA-256 3609ace31b854b80…

MALICIOUS

Office (OLE) / .DOC

154.4 KB Created: 2020-09-14 17:52:00 Authoring application: Microsoft Office Word
MD5: e78834208888681817d8f5b34f6fee7f SHA-1: 6fbcabd8c5b4245f53b0b82def12d90f2add9d02 SHA-256: 3609ace31b854b805dbcd138722334bbf3ba80fafcba1cf7b2ec42abb3ab15bc
240 Risk Score

Malware Insights

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

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an attempt to execute code automatically when the document is opened. The ClamAV detection and heuristic firings strongly suggest malicious intent, likely to download and execute a second-stage payload. The embedded URL, while benign, is present in the document text.

Heuristics 7

  • ClamAV: Doc.Malware.Generic-9760287-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760287-0
  • 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
1c1ac6d8019d3317e1fd9360b916f40afe347161c1d653ef40242d0284d5107c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18510 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.