Office (OLE) / .EXE malware analysis — malicious · 650e3f6cfc650c2b

MALICIOUS

Office (OLE) / .EXE

36.5 KB Created: 2000-03-27 13:58:00 Authoring application: Microsoft Word 8.0

MD5: 153bb7e29a721006857b9206b03b1390 SHA-1: 29cc67f67a006acd082943e9514590a927515a4e SHA-256: 650e3f6cfc650c2baa00230d2f695dd56b74b1abed38592f3dd4e7d71a4323f4

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic

The file contains VBA macros, including AutoOpen and AutoClose functions, which are designed to execute automatically when a document is opened or closed. The script attempts to copy itself to other documents and global templates, indicating a self-propagation or persistence mechanism. The presence of AutoOpen and AutoClose macros, along with the explicit copying of 'WININIT' and 'AutoClose' to other locations, strongly suggests a macro-based infection strategy.

Heuristics 5

ClamAV: Doc.Trojan.Nottice-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Nottice-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.
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close 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` `24df617a77fde5edd9d82990c96ac3634aae338c21218734c38187294ad94fe3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1774 bytes
Detection ClamAV: Doc.Trojan.Nottice-1 Obfuscation or payload: unlikely

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