Office (OLE) malware analysis — malicious · 56c27acc69be9425

MALICIOUS

Office (OLE)

52.5 KB Created: 2010-04-12 12:39:00 Authoring application: Microsoft Macintosh Word

MD5: 4041969697678b991492ca43e78bc2aa SHA-1: 39cd2e149ad70a9f4f89dd2e1a679af84891a1cc SHA-256: 56c27acc69be9425f3f68e511e3658e62c9effeeb9ea80c9203fc7e1794cd1bb

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is an OLE 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-8', indicating it's a known malicious document. The presence of the Document_Open macro suggests the intent is to execute malicious code automatically when the document is opened, likely to download and run a secondary payload. No specific family could be identified from the available evidence.

Heuristics 5

ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-8
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
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `cc485c8c32f6cbe3ede6f17c27fbe5979c9646fa6dc93242dabaa5d072082eb4`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2307 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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