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

Static analysis result for SHA-256 ff485354658226e0…

MALICIOUS

Office (OLE) / .DOC

1.78 MB Created: 2024-02-23 06:02:00 Authoring application: Microsoft Office Word
MD5: b066dba64b9419eb33c3533f3e77c7ed SHA-1: 617674d6d5240e826e8617261fb10534d3806483 SHA-256: ff485354658226e073ee0f28e6976812465c43d251760f0be256bbf349d2a322
188 Risk Score

Malware Insights

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

The sample is a malicious OLE document containing a large VBA macro. The Workbook_Open macro is configured to execute, and a CreateObject call is present, indicating the likely execution of arbitrary code. This suggests the macro is designed to download and execute a second-stage payload. No specific family could be identified, but the techniques used are common for macro-based malware delivery.

Heuristics 7

  • 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
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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
b0dc2fe66a16b44271e31042c20f4e21edb25e73cc610d56dd69754366d58d04		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2671088 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 11188 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.