Office (OLE) malware analysis — malicious · 3b6aea359ebf6409

MALICIOUS

Office (OLE)

39.0 KB Created: 2009-02-26 22:20:00 Authoring application: Microsoft Word 11.5.3

MD5: d33e7d30c9ea62ed90b7337b662c8530 SHA-1: 52ad77725919a41186e10826bdf8496ed03426e3 SHA-256: 3b6aea359ebf640985330815faaa42bcbf42ce8a292c02f87364b03fae110b70

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-10'. Static analysis detected VBA macros, specifically a 'Document_Open' macro, indicating that the document is designed to execute code automatically when opened. This macro likely serves to download and execute a second-stage payload, a common technique for malware delivery.

Heuristics 4

ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-10
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` `426b63b1c896384e051f78ec7a38a682c354bf60ca07cea640a1b52692691914`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2348 bytes
Detection ClamAV: Doc.Trojan.Thus-10 Obfuscation or payload: unlikely

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