Office (OLE) / .DOCX malware analysis — malicious · 52ead54da4a0ff73

MALICIOUS

Office (OLE) / .DOCX

164.0 KB Created: 2020-10-20 08:13:00 Authoring application: Microsoft Office Word

MD5: 0aa7d956c268bb180637fc0270ba227e SHA-1: de41b8dfe85d89a3920f5fc917145ccf2f42ca53 SHA-256: 52ead54da4a0ff739478ee507e1eaecff307b00e8a5c8aa6758614f8c56558ce

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The CreateObject call and p-code execution further support this. ClamAV detected this file as 'Doc.Trojan.Agent-9781037-0', suggesting it acts as a downloader for a secondary payload. No specific family could be identified, but the execution of VBA macros to download and run further code is a common attack pattern.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9781037-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9781037-0
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` `8eb6ba0866f4c6c9ad4d97b0723246709e3ca63ed0491e35acc3191e90884d63`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17541 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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