Office (OLE) malware analysis — malicious · 8b8c76759a953e9c

MALICIOUS

Office (OLE)

15.5 KB Created: 2003-07-13 09:57:11 Authoring application: Microsoft Excel

MD5: 930f5051bf855afd328a682459ca27a6 SHA-1: a161c97c90658f6dbfa8cc4b39a3fb542973911a SHA-256: 8b8c76759a953e9c022aa810464c0174f98c627bad4971a4074dab7e443bd2df

180 Risk Score

Malware Insights

MITRE ATT&CK

T1564.004 Hide Artifacts: Defense Evasion

The file is identified as an antivirus bait by its content and ClamAV detections. It contains VBA macros, specifically an Auto_Open macro, which is a common technique for initiating malicious actions in Office documents. However, the document body explicitly states it is an 'Antivirus Bait file', indicating its purpose is to trigger detections rather than execute a payload. No further malicious IOCs or scripts were extracted.

Heuristics 4

ClamAV: Xls.Trojan.Escape-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Trojan.Escape-2
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.
Auto_Open macro high OLE_VBA_AUTO

Auto_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` `b1dc6e799f600e1fe03c12ee5c927d9c20e72385747b65f9e697c96da1cbf849`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1767 bytes
Detection ClamAV: Xls.Trojan.Escape-1 Obfuscation or payload: unlikely

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