Office (OLE) / .DOC malware analysis — malicious · 03f3a0642f5a27ad

MALICIOUS

Office (OLE) / .DOC

162.4 KB Created: 2020-09-17 22:39:00 Authoring application: Microsoft Office Word

MD5: 69928ce42ce66d02439f2547d3e81e5e SHA-1: 907d06df752cdcb3d2e49ad78fae6920ac48e5ea SHA-256: 03f3a0642f5a27ad40a79dc9e9ed94bb86e54bbc52823406df5b79b2d8f2a5ca

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The VBA code is obfuscated and uses CreateObject, indicating it likely attempts to download and execute a second-stage payload. The ClamAV detection also points to a downloader.

Heuristics 6

ClamAV: Doc.Downloader.Generic-9763145-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763145-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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` `1e2a7d06314ac88dde2877d244d6ca5e91533ec592ad1318aa4aab91c451ca9e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21979 bytes

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