Office (OLE) / .DOC malware analysis — malicious · 74c6c86df5537af5

MALICIOUS

Office (OLE) / .DOC

56.0 KB Created: 2008-03-27 08:21:00 Authoring application: Microsoft Word 10.0

MD5: 320dc322996e4d11abc96d5eb8864d4b SHA-1: 8425bb4e561ceaf1044ffad78b6183ad63bb9ca2 SHA-256: 74c6c86df5537af5e84f08273c4a6cee227ce54091972543f3c9ecdb02e61131

260 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is a malicious Word document containing VBA macros, specifically triggering AutoOpen and Document_Open events. The ClamAV detection names 'Doc.Trojan.Thus-10' and 'Doc.Trojan.Saver-2' indicate known malware behavior. The VBA code appears to be attempting to obfuscate or protect itself, but its ultimate goal is likely to execute further malicious actions upon opening.

Heuristics 6

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.
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open 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` `7b4ae4307dde748d4e9ba10f3bd708c5cf72f3b82aec3ca2562bba680a79dd07`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4495 bytes
Detection ClamAV: Doc.Trojan.Saver-2 Obfuscation or payload: unlikely

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