Office (OLE) / .DOCX malware analysis — malicious · 840df4e58bc0c6f0

MALICIOUS

Office (OLE) / .DOCX

28.5 KB Created: 1999-06-16 13:03:00 Authoring application: Microsoft Word 8.0

MD5: 1a50a47ca36c7dd46bfb04907733a9e2 SHA-1: fa1c3ef234df90ce242717deda625a5dff69983d SHA-256: 840df4e58bc0c6f02f7c7f3a45ae88f60c0eaa23d4c7f20c8ab8849430e9a7ee

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1505.003 Server Software Component: Web Shell

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The macro code appears to be designed to inject itself into other documents or templates. The ClamAV detection 'Doc.Trojan.Alive-1' further supports its malicious nature. The script's intent is to spread its malicious VBA code to other documents and templates, potentially as part of a larger infection chain.

Heuristics 4

ClamAV: Doc.Trojan.Alive-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Alive-1
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `b9c622404882ce6c7f878b965e5539a19e8ac8361dc798992c082d74e414e1da`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1692 bytes
Detection ClamAV: Doc.Trojan.Alive-1 Obfuscation or payload: unlikely

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