Office (OLE) malware analysis — malicious · 2dd29fd9ca799e86

MALICIOUS

Office (OLE)

148.0 KB Created: 2003-10-29 18:29:00 Authoring application: Microsoft Word 10.1

MD5: 744bf2b4d77adf02d32a35a82d86f3ba SHA-1: 36913b2f71bb96ed522b4278d61c82f2ccbd1147 SHA-256: 2dd29fd9ca799e86218640b49e009121149ec41c9190f45138f818b593326fab

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. ClamAV detected the file as 'Doc.Trojan.Thus-5', indicating a known malicious pattern. The document body, while appearing to be a scientific text about ecology, serves as a lure to encourage the user to enable macros.

Heuristics 4

ClamAV: Doc.Trojan.Thus-5 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-5
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` `8f322562a44561050110948e1b14fff698ff90be5417cb9b98337c3f5a9f8c0b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2346 bytes
Detection ClamAV: Doc.Trojan.Thus-5 Obfuscation or payload: unlikely

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