Office (OLE) / .DOC malware analysis — malicious · 1734086a804fc274

MALICIOUS

Office (OLE) / .DOC

155.7 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word

MD5: 4f89fcdc2198464437f91c9ea8bab99e SHA-1: 7a1ec448f4f596826b3d74d4551ee5e69b9259f8 SHA-256: 1734086a804fc2741b49c2b16c1d16f34b95dcc49bc3f0fb729b1b48d9c8586e

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious OLE document containing VBA macros. The 'Document_open' macro is present and configured to execute automatically, indicating an attempt to run malicious code upon opening. The presence of 'CreateObject' and 'GetObject' calls further suggests the macro is designed to interact with the system or download additional components. While the exact payload is obfuscated, the overall pattern points to a macro-based downloader.

Heuristics 7

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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` `63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15901 bytes

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