Office (OLE) / .DOCX malware analysis — malicious · 4e737e03635e1e3e

MALICIOUS

Office (OLE) / .DOCX

165.3 KB Created: 2021-01-05 07:28:00 Authoring application: Microsoft Office Word

MD5: 0f9cae6478d548a54be6213ccdb003c5 SHA-1: 3a0727373a259c10c86b01e6fec9e6d557a8f55a SHA-256: 4e737e03635e1e3e25aa1dbe5b3d6b48475ff22a04d6c7784f9a2ab55083d0f0

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, indicate malicious intent. The presence of a Document_Open macro suggests the malware attempts to execute immediately upon opening the document. The extracted URL, though benign, is listed as an embedded URL, which is often used for downloading additional payloads.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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.

Filename	Kind	Source	Size
`macros.bas` `a19bea0b68e66c642d89ca357193de473f2db600ca0ce526dc79ce8aaabe41a9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10612 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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