Office (OLE) / .DOCX malware analysis — malicious · 535d02827872a173

MALICIOUS

Office (OLE) / .DOCX

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

MD5: f977d6989ea85bf5e6a000047ddb5407 SHA-1: d1f5c95fd1ada854dfb85172fada4de55e41bc18 SHA-256: 535d02827872a173ce137cb7d35ebe5aa4ed91786ad5437e7b961041e79f632e

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The presence of the 'CreateObject' call and p-code auto-execution further supports this. ClamAV also detected this file as 'Doc.Trojan.Agent-9781037-0'. The primary malicious activity appears to be the execution of the embedded VBA macro, likely to download and execute a secondary payload. No specific family could be identified.

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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