Office (OLE) / .DOCX malware analysis — malicious · 4299bfda475b3030

MALICIOUS

Office (OLE) / .DOCX

513.5 KB Created: 2026-02-10 13:56:00 Authoring application: Microsoft Office Word First seen: 2026-02-25

MD5: 85a2dba599390143c665e349f9f04161 SHA-1: 0365daf83e37d2c6daaae6c28b4c8343288ef2f9 SHA-256: 4299bfda475b30306a93811a4d9948bec368dda819eb63b737c65c393b313a24

210 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1059.003 Windows Command Shell

The sample is a DOCX file containing a VBA macro named 'macros.bas'. This macro utilizes the CreateProcess API, indicating an attempt to execute a process. The ClamAV heuristic also flags it as a 'Doc.Dropper.HexEncodedEXEHeader', suggesting it's designed to drop and execute further malicious content. The VBA code is truncated, preventing a full analysis of the executed payload, but the presence of CreateProcess is a strong indicator of malicious intent.

Heuristics 7

ClamAV: Doc.Dropper.HexEncodedEXEHeader-9789587-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.HexEncodedEXEHeader-9789587-1
Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
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.

Filename	Kind	Source	Size
`macros.bas` `eab6e03a1e02e654290ff887ee8373d04d261bfa3f38e1b3d4419dc377eda497`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3614 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely 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.