Office (OLE) malware analysis — malicious · b3baaa87ea7584fe

MALICIOUS

Office (OLE)

104.5 KB Created: 2006-02-07 15:05:00 Authoring application: Microsoft Word 10.1

MD5: 98009d342e0b34e4063ff83b068ed8a9 SHA-1: 5ba3c66b50b2c3c0e2a7259dc5b796e11f92054c SHA-256: b3baaa87ea7584fe7f28dfb58892704ee2eb8b7d0ff3cead570c3db12d720f3c

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1566.001 Spearphishing Attachment

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initiating malicious activity upon opening. ClamAV detections indicate it is recognized as a Trojan. The document body presents a plausible lure, appearing to be a form for a school sports team, designed to trick the user into enabling macros. The Document_Open macro likely executes the malicious payload.

Heuristics 4

ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Marker-40
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` `64d1b7cfc68b29b0db45513f35d72cd73a4516aea0cb21785a0934442451de20`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4233 bytes
Detection ClamAV: Doc.Trojan.Marker-2 Obfuscation or payload: unlikely

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